Without getting under your skin: non-invasive stimulation activates the vagus nerve

Cervical non-invasive vagus nerve stimulation (nVNS) has emerged as a practical neuromodulation approach with FDA-cleared indications in primary headache disorders, yet skepticism persists over whether transcutaneous stimulation can reliably engage vagal fibers or whether observed benefits reflect nonspecific cervical activation. Here, we synthesize converging anatomical, biophysical, physiological, and clinical evidence demonstrating that nVNS does, in fact, activate vagal pathways without surgical implantation. We first review cervical vagus anatomy and the biophysical basis for target engagement, including ultrasound-measured nerve depth and multi-scale computational models showing that clinically relevant stimulation can recruit predominantly large myelinated vagal fibers. We then integrate mechanistic evidence across complementary modalities: functional imaging consistently modulates canonical vagal projection sites (including brainstem nuclei), electrophysiology demonstrates peripheral vagal recruitment and centrally transmitted evoked responses, immune studies reveal reproducible suppression of pro-inflammatory cytokines consistent with cholinergic anti-inflammatory reflex engagement, and autonomic biomarkers show shifts toward increased parasympathetic tone. Finally, we contextualize these mechanistic findings with sham-controlled randomized trials in cluster headache and migraine, where nVNS repeatedly outperforms sham for acute and preventive outcomes with a favorable safety profile. Together, these independent lines of evidence form a coherent mechanistic fingerprint that is difficult to reconcile with placebo or superficial muscle stimulation accounts. We conclude that nVNS provides a credible, scalable means of accessing vagal neurophysiology and represents a clinically validated, paradigm-shifting advance in bioelectronic medicine.

Acupuncture modulates the microbiota-gut-brain axis to treat irritable bowel syndrome: a mechanistic exploration

Irritable bowel syndrome (IBS) is a common functional gastrointestinal disorder involving dysregulation of the microbiota-gut-brain (MGB) axis. Acupuncture effectively alleviates IBS symptoms, yet its underlying mechanisms remain incompletely understood. This review synthesizes current evidence to propose a mechanistic framework by which acupuncture treats IBS through MGB axis modulation. We systematically examine: (1) MGB axis dysfunction in IBS pathophysiology across neural, endocrine, and immune pathways; (2) acupuncture’s modulation of gut microbiota structure (alpha/beta diversity, specific bacterial genera); (3) functional consequences including enhanced short-chain fatty acid production and tryptophan metabolism; (4) causal evidence from fecal microbiota transplantation; (5) correlations between microbiota changes and clinical improvement. Key findings reveal that acupuncture induces “convergent remodeling” of microbial structure toward a healthy profile, exerts “bidirectional regulation” on beneficial and harmful bacteria, and establishes a “niche selection” mechanism via neuro-immune pathways. These microbiota-mediated effects integrate with neural, endocrine, and immune pathways, forming a “point-to-surface” networked regulatory pattern that explains acupuncture’s dual efficacy in alleviating both gastrointestinal and psychological symptoms. This review provides a novel theoretical framework for understanding acupuncture’s therapeutic mechanisms and supports its clinical application in IBS management.

A high-dimensional atlas of parvalbumin interneuron soma morphology in mouse visual and somatosensory cortex

Parvalbumin-positive (PV+) inhibitory interneurons are central components of experience-dependent plasticity in the visual cortex (V1). Anatomically, they are distributed across cortical layers and are traditionally classified as basket, chandelier, or bipolar cells based on dendritic and axonal arborization patterns. In parallel, physiological, transcriptomic, connectomic, and multimodal studies have revealed substantial diversity within PV+ populations, raising the question of how this diversity is organized within cortical circuits. In contrast, light microscopy studies based on soma labeling have primarily quantified PV+ cells using size and density, and the potential of soma morphology to capture this diverse organization remains unclear. To address this, we developed a high-throughput, data-driven approach to quantify PV+ soma morphology in > 14,000 cells from mouse V1 and somatosensory cortex (S1). Using 97 morphological features combined with clustering, phenotyping, and laminar mapping, we identified structured diversity in PV+ somas. PV+ cells were organized into 13 morphological clusters along partially independent gradients of size and shape. Phenotyping identified four size and five shape categories that describe PV+ cell diversity across cortical areas. Mapping these categories onto cortical layers revealed a structured organization in which specific morphologies are enriched within distinct laminar compartments. This organization aligns with cortical architecture and suggests that PV+ interneuron morphology is systematically related to circuit structure. These findings demonstrate that substantial morphological information can be extracted from standard PV+ labeling approaches using quantitative analysis. Together, this work provides a high-dimensional atlas of PV+ interneuron soma morphology in mouse V1 and S1 and establishes a framework for linking cellular anatomy to circuit organization and experience-dependent plasticity.

Longitudinal changes in MMN and P3 during emotional processing in adolescents who engage in NSSI: a 12-week follow-up study

BackgroundAdolescents with nonsuicidal self-injury (NSSI) often show deficits in negative emotion regulation. Within the dual-process framework of implicit and explicit emotion regulation, these deficits may reflect an automatic bias toward negative information and insufficient later-stage controlled regulation. Whether routine clinical intervention modifies both early automatic detection and later controlled evaluation of negative emotional information remains unclear.MethodsIn a longitudinal sample of 32 adolescents with NSSI, we examined changes in mismatch negativity (MMN) and P3 components elicited during an emotional oddball task before and after a 12-week clinical intervention. At baseline and Week 12, participants completed clinical assessments and a two-choice visual emotional oddball task containing neutral standards and negative, positive, and neutral deviants while EEG was recorded. MMN (Fz, 240–300 ms) and P3 (Pz, 450–650 ms) amplitudes were derived from deviant-minus-standard difference waves, indexing pre-attentive deviance detection and controlled evaluation, respectively.ResultsThe intervention selectively modulated neurocognitive processing of negative deviants. Self-injury ideation days (p = .036) and NSSI episode frequency (p = .007) both significantly decreased. MMN absolute amplitude to negative stimuli decreased significantly (p = .047), suggesting attenuated automatic salience detection, whereas P3 amplitude to negative stimuli increased significantly (p = .027), indicating enhanced controlled evaluation. Responses to positive and neutral conditions and behavioural performance remained stable. No baseline ERP–clinical correlations emerged; post-intervention, NSSI ideation days correlated with positive P3 (r = 0.380, p = .032), and episode frequency with neutral P3 (r = 0.461, p = .008).ConclusionsA 12-week intervention may attenuate automatic negative bias while enhancing controlled evaluative processing in adolescents with NSSI, consistent with the implicit–explicit framework. MMN and P3 may serve as candidate biomarkers and temporally sensitive tools for tracking intervention response when behavioural performance is stable.

Case Report: Reintroduction of winged infusion sets to needle syringe programs – advancing equity in harm reduction

BackgroundIn January 2023, following a 20-year ban, the New South Wales (NSW) Needle and Syringe Program (NSP) Guidelines permitted NSPs to provide winged infusion sets (‘butterflies’) and larger-volume syringes (‘barrels’) commonly used for injecting methadone liquid intravenously.ApproachThe Kirketon Road Centre (KRC) integrated the distribution of ‘butterflies and barrels’ (referred to as ‘butterfly packs’) into its service delivery in April 2023 and developed resources in collaboration with the Uniting Medically Supervised Injecting Centre (MSIC) and the NSW Users and AIDS Association (NUAA). This case report presents an audit of service delivery and self-reported client outcomes following the introduction of ‘butterfly packs’.OutcomesSince April 2023, KRC has been consistently supplying ‘barrels’ and ‘butterflies’ to clients who inject methadone. The proportion of NSP visits by clients who reported methadone as the last drug injected increased significantly after the program’s introduction (from 2.2 to 4.0 methadone-related attendances per month), and so did the amount of corresponding injecting equipment and verbal education sessions. Among 18 survey respondents, the majority reported improved health or safety since accessing butterfly packs (89%).ConclusionEquipment for intravenous methadone administration can be safely and efficiently distributed by NSP programs. Access to harm reduction services should be based on vulnerability and need, with services tailored accordingly. The policy reversal allowing ‘butterflies and barrels’ and service innovations such as KRC’s program have addressed a longstanding gap, advancing equity in harm reduction for people who inject methadone in NSW.

Tracking the longitudinal course of physiologic and mental health functioning among individuals in substance use disorder treatment

IntroductionMental health monitoring is crucial to long-term recovery in substance use disorder (SUD) treatment; however, little is known about how changes in physiological indicators align with changes in self-reported mental health over time.MethodsWe examined longitudinal associations of resting heart rate (RHR) and heart rate variability (HRV) collected via a WHOOP® photoplethysmography device with self-reported stress, anxiety, and depressive symptoms among individuals in SUD treatment. Participants (N = 59) continuously wore the device and completed at least two mental health and stress assessments during the first month of residential treatment. ResultsLinear regression results indicated favorable changes in mental health and/or physiologic metrics, with notable heterogeneity in concurrent subject-level trends. Among participants with decreased RHR (better physiological functioning), 39% (N=23) also endorsed decreased stress, 42% (N=25) decreased anxiety, and 39% (N=23) improved depressive symptoms. Of those with increased HRV (greater stress adaptability), 39% (N=23) endorsed decreased stress, 39% (N=23) improved anxiety, and 41% (N=24) reduced depressive symptoms.DiscussionConcurrent changes in physiologic and mental health metrics during the first month of treatment varied across participants. These findings highlight the importance of integrating subjective mental health measures with physiological indicators to capture clinically relevant change during early SUD treatment.

Association between plasma proBDNF levels and cognitive impairment in patients with alcohol dependence: a case–control and longitudinal study

BackgroundAlcohol dependence is frequently accompanied by cognitive impairment. Brain-derived neurotrophic factor (BDNF) signaling plays a critical role in synaptic plasticity, while the precursor form, proBDNF, has been increasingly implicated in neurodegenerative and psychiatric disorders. However, the association between plasma proBDNF levels and cognitive impairment in alcohol dependence remains unclear.MethodsEighty male patients with alcohol dependence and forty-two matched healthy controls were enrolled. Plasma proBDNF levels were measured via enzyme-linked immunosorbent assay (ELISA). Cognitive function was assessed using the Mini-Mental State Examination (MMSE), the Modified Wisconsin Card Sorting Test (M-WCST), and the Verbal Fluency Test (VFT). Forty-one patients were reassessed after four weeks of abstinence. Group comparisons and correlation analyses were performed.ResultsPatients with alcohol dependence exhibited significantly elevated plasma proBDNF levels and impaired cognitive performance compared with controls. Plasma proBDNF levels were positively correlated with alcohol consumption severity, and linked to global cognitive deficits alongside nuanced executive performance variations. After four weeks of abstinence, plasma proBDNF levels decreased and cognitive performance improved; however, changes in proBDNF were weakly associated with cognitive recovery.ConclusionsElevated plasma proBDNF levels are associated with alcohol dependence severity and cognitive impairment, suggesting that proBDNF may serve as a peripheral biomarker reflecting the dynamic neurocognitive status in alcohol dependence.

The therapeutic role of self-transcendence in moral injury recovery: theory, mechanisms, and clinical implications

A growing body of psychological and neuroscientific research suggests that moral injury (MI) involves maladaptive self-referential processing, including disruptions in moral identity, rigid negative self-appraisals, and impaired meaning-making following exposure to potentially morally injurious events (PMIEs). Building on Mindfulness-to-Meaning Theory (MMT), this paper proposes self-transcendence (ST)—a metacognitive state characterized by reduced self-focus, expanded awareness, transcendent affect, and prosocial meaning—as a potential mechanism for MI recovery. Within MMT, mindfulness practice is theorized to cultivate ST via decentering and meta-awareness, processes that broaden attentional scope, promote flexible cognitive reappraisal, and modulate habitual self-referential processing. Mindfulness and contemplative research further link ST to increased cognitive flexibility, reduced in shame-focused narrative self-processing, and adaptive integration of emotionally and morally disruptive experiences. Drawing on an integrative review of ST-consistent and MI-related mechanisms, this paper argues that fostering ST through mindfulness-based and contemplative practices may reduce rigid self-focus, expand interpretive frameworks of meaning, and support moral identity repair and meaning-making. Implications are discussed for designing interventions that intentionally cultivate ST as both standalone approaches and modular components, while acknowledging current limitations in measurement, readiness assessment, and the reliable induction of ST states.

The “steroid olympics” were a circus—and a window into our culture

Testosterone. Methenolone. Nandrolone. Human growth hormone and EPO. Meldonium, modafinil, and mixed amphetamine salts. Clomiphene, anastrozole, levothyroxine, and liothyronine. Patches and capsules, creams and pills. A whole galaxy of steroids, metabolic modulators, and synthetic hormones coursing through the blood of a few dozen swimmers, sprinters, and weightlifters. And millions of dollars up for grabs for athletes who could break world records and usher in the age of superhumanity.

On Sunday, May 24, at a $50 million arena built in a casino parking lot in Las Vegas, I witnessed a libertarian thought experiment come to life. The inaugural Enhanced Games were the first sporting competition where participants were encouraged to take performance-enhancing drugs. The founders say they’re challenging dated sporting norms and helping to build a world where we can all live better, longer lives. Critics say the event is an embarrassment, that it glamorizes the use of dangerous substances and puts lives at risk. 

The open-air venue was compact and decked out in bright blue, with a six-lane, 100-meter track down one side, a four-lane Olympic-length swimming pool down the other, and a weightlifting platform and stage at the front. You could see the golden façade of the Trump Hotel looming in the background. The scene had all the trappings of an NFL game, with the too-loud music and crowd work on the big screen—a “flex cam”  gave the well-muscled an excuse to unveil their biceps. Between events, adverts flashed up for the line of performance products sold by Enhanced, the company behind the event: injectable peptides that supposedly support cellular energy and skin elasticity, daily supplement powders with names like “Stronger” and “Longer.”

James Magnussen, wearing his race goggles and cap, stretches his arms above him

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the Enhanced Games stadium from an elevated viewing angle

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Australian swimmer James Magnussen was the first athlete to sign up with Enhanced but hasn’t broken any world records. He finished last in his two events in Las Vegas.

The day started with the weightlifters, under the blazing sun. But by 4 p.m., only one of them had even attempted a world-record lift. Two had pulled out injured. Some athletes were competing without taking drugs because of the money on offer, and as the competition went on, they had the better of their enhanced peers: Hunter Amstrong, a 25-year-old American swimmer and triple Olympic medalist, won the backstroke by more than a second. In the men’s 100-meter sprint, the non-enhanced US athlete Fred Kerley romped to an easy victory. “Man, they gotta do better than that,” he said of his doped opponents in his post-race interview. “They need to train a little harder, get on that shit a little bit more.”

At the bar, bodybuilders swapped before-and-after pictures and talked about their stacks, and VCs and finance bros traded LinkedIn details. Lukas Lakutsin, a 6-foot-10, 354-pound Russian bodybuilder who was milling around the entrance to the VIP suites, initially told me he didn’t use any performance-enhancing drugs. Except testosterone replacement therapy, of course. But he didn’t think that really counted. “I’m almost 34 years old,” he said. “I need to do this to stay strong.”

close up shot of a man's muscled chest
The “protocol” for Enhanced athletes only includes FDA-approved drugs. While Enhanced’s team might make recommendations, individuals have the final say on what they want to take, if anything.
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Jeremy Sigal, an influencer and author, wore a USA tank top that showed off hugely muscled arms adorned with prison tattoos. He told me he was proudly natural, in both his health and his personal life. “I’ve got an exceptional credit score,” he said. He has written 12 books on marketing and leadership. Later, I looked up his most recent book online. It’s called Simp to Pimp: 10 Steps to Fix Why She’s Not Banging You and lists AI as a coauthor.

What I saw in Las Vegas probably wasn’t the future of sport. But it was a perfect encapsulation of our present moment, as Silicon Valley biohackers, alt-right looksmaxxers, Make America Healthy Again boosters, and longevity-obsessed scientists all vie to remake reality in their own image. For them, the Enhanced Games offered a glimpse of a future where medical advances push the human race to new heights, and where they never have to get old. 

I’ve tracked Enhanced’s journey from a crazy idea scribbled on a napkin to a public company valued at $1.2 billion. Behind the scenes, there have been power struggles, life-changing victories, and moments of total farce. As I recently, finally, watched the games unfold, two questions bounced around my head: Were they right? And what does that mean for the rest of us?


In December 2022, the Australian entrepreneur Aron D’Souza flew to Miami to spend New Year’s Eve with his friend and mentor Peter Thiel. A decade earlier, D’Souza had helped Thiel orchestrate the lawsuit that bankrupted Gawker—a stunning revenge against the gossipy New York media blog that had outed him as gay. Now he was armed with a disruptive idea that he thought Thiel, the billionaire cofounder of PayPal and Palantir, would love. It was inspired by the buff bodies he’d been seeing at the gym, highlighting a disconnect between a workout culture where the use of steroids was an open secret and a sporting establishment where it was, at least on paper, an inviolable taboo.

His initial pitch was provocative and confrontational: a grand sporting event to rival the Olympic Games, where competitors could take any substance they wanted—their body, their choice. The first time I met D’Souza, in the spring of 2024, he had founded the company and attracted some initial investment but seemed obsessed with taking on the fat cats at the International Olympic Committee and reinventing sports (even though he didn’t seem to be a huge sports fan himself). On Enhanced’s Discord server, I found a folder full of memes with names like IOC Clowns.jpg. The whole thing felt very unserious.

That would change. 

D’Souza told me that Thiel had previously introduced him to Christian Angermayer, a German biotech billionaire, who would come onboard at Enhanced. He’s funded clinical trials of psychedelics through his company Atai Life Sciences and is helping bring them into the medical mainstream as a treatment for depression and anxiety. Angermayer says he spotted an opportunity to do the same thing for steroids. What he really wants is to redefine medicine, he told me. Its focus has already changed from treating disease to trying to prevent it; actively enhancing people’s health, he says, is just the next logical step.

By early 2024, Angermayer had brought his own people into key roles. The team included Michael Sagner, an anti-aging expert and private doctor who works with many of Hollywood’s leading men, and Max Martin, who has the jawline and cheekbones of an Instagram looksmaxxing influencer and the boundless enthusiasm of a puppy. (He started his own enhancement program a few years ago, when he was just 27.) Sagner would head up Enhanced’s medical commission, making sure the games were safe for the athletes. It was Martin’s job to make sure they actually happened. 

a group of men in business suits posing at the desk of the NYSE
In early May, Enhanced began trading on the New York Stock Exchange with an initial value of $1.2 billion. Christian Angermayer stands far right with Max Martin to his left (front row), and Aron D’Souza next to him.
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Tensions sparked as D’Souza’s freewheeling style clashed with the more sensible image that Sagner and others were now keen to present. “It was not just his personality and his abrasive way of talking,” Sagner told me recently. “Even when he was briefed on a scientific fact, he would just completely ignore it and say something outrageous.”

But the more outrageous D’Souza got, the more attention his idea received. In February 2024, James Magnussen, a retired Australian swimmer, became the organization’s first official athlete, and Enhanced promised to pay a million dollars to him, or anyone else, who could break the world record in the 50-meter freestyle.

The notion of a “steroid olympics,” as many have dubbed the Enhanced Games, had been kicking around for decades—for instance, in a Wired article from the early 2000s and an SNL sketch from the 1980s. Two things helped finally make the Enhanced Games a reality. First, in November 2024, Donald Trump was again elected president of the United States. The Biden administration had been actively hostile to the games, but the founders saw a more receptive political environment in Trump world. Not long after the election, Enhanced announced a new tranche of funding led by 1789 Capital, a venture capital firm whose partners include Donald Trump Jr.

And second, in February 2025, an enhanced swimmer finished the 50-meter freestyle faster than anyone in human history. It wasn’t Magnussen, though. He had been injecting himself with testosterone to grow muscle, plus a cocktail of peptides that aimed to speed up recovery—but his journey hadn’t quite worked the way he’d planned.

A combination of reputational issues (no pools wanted to host his training) and physical complications (the regimen did help him get stronger, but he packed on so much muscle that it slowed him down in the water) meant he watched from the sidelines as the Bulgarian-Greek swimmer Kristian Gkolomeev—who had finished fifth at the Paris Olympics in 2024—came in two-hundredths of a second under the record and won a million-dollar payout from Enhanced. The idea has always been that breaking records would effectively prove the legitimacy of this enhancement project: Look what we can do now

Over the shoulders of Shane Ryan (left) and James Magnussen (right) as they sit and talk poolside
Enhanced swimmers like Magnussen (right) wore supersuits to compete, though they’ve been banned by World Aquatics since 2010.
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Gkolomeev, though, had a different motivation for participating: “One successful year in the Enhanced Games and I could make as much as I would in almost 10 careers,” he told me not long after setting the new record (notably, wearing a kind of “supersuit” that’s been banned by World Aquatics since 2010). Enhanced was paying its athletes a regular salary, on top of any potential bonus. And he had a young family to support and feared that the four-year stretch to the next Olympics would be long and precarious. 

In May 2025, with a world record in the bag and a friendly administration in the White House, Enhanced was ready to announce its first games: They’d take place in May 2026 at Resorts World in Las Vegas. 

At the same time, D’Souza made another big reveal: Enhanced Performance Products, a line of supplements available for a monthly subscription. The Enhanced Games now seemed less like a sporting event and more like a loss leader for selling testosterone injections, GLP-1s, or a range of peptides that are claimed, with little scientific evidence, to improve sleep or skin elasticity. Perhaps it was all a brilliantly executed marketing stunt.

“The games themselves now seem almost secondary to what appears to be an online marketplace for hormones, peptides, and other performance-enhancing compounds,” says Astrid Kristine Bjørnebekk, a steroids expert at Oslo University Hospital. “From my perspective, this significantly changes the nature of the project. It is one thing to organize a closed sporting event built around controversial principles, but openly marketing and commercializing substances such as testosterone, hGH, GLP-1 drugs, peptides, and other pharmacological compounds is something else entirely.”


As the games approached, more athletes joined. Some were genuinely elite. The US sprinter Kerley—who is serving a two-year ban for missing three drug tests—had won silver in the 100 meters in the Tokyo Olympics and a bronze in Paris. Ben Proud, a British swimmer, had won silver at the Paris Olympics and dozens of medals at world and European championships and the Commonwealth Games. He had been mulling over joining the Enhanced Games ever since the idea first emerged, but the tipping point seemed to come when Gkolomeev’s record was announced. 

Some participants, like Magnussen and another swimmer, Megan Romano, had been tempted out of retirement. Romano hadn’t swum competitively for almost a decade. Others were at the start of their careers but ready to cash in their chips and bid goodbye to Olympic dreams for a potential six-figure payday. The $1 million payouts were reserved for records in the two flagship events—the 50-meter freestyle and the 100-meter sprint—but winning any other event would mean a prize of $250,000, with an additional $250,000 bonus for setting a world record.

Athletes would get paid even if they just showed up and finished last—as much as $50,000. This is all on top of the salaries that stretched into six figures in some cases, making the payout from the games more than many athletes make in a year.

Sport’s governing bodies reacted to each new athlete announcement with fury. World Aquatics threatened to ban for life any athlete who participated in the games, even if they didn’t take any drugs. Enhanced responded with an $800 million antitrust lawsuit against the global swimming organization, the World Anti-Doping Agency, and USA Swimming, alleging misuse of monopoly power.

Emmanuel Matadi (left) and Fred Kerley (right) running on the track
American Fred Kerley (right) won the 100-meter sprint without performance enhancing drugs.
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In November 2025, a court in New York dismissed the case. Three days later, D’Souza, the mind behind the entire project, was out. A notice on Enhanced’s website said he had “transitioned out of the company’s day-to-day operations.” Martin would take over as CEO. “The investors basically said we need someone a bit more serious,” Sagner told me. In conversations, execs at Enhanced played down any suggestion of a feud—D’Souza was simply the ideas man, with little interest in the day-to-day dreariness of actually running a company. (Enhanced spokesperson Chris Jones wrote in a statement that “there is no tension between Aron and Enhanced that I’m aware of.” D’Souza did not respond to a request for comment.)

I got the sense that Enhanced, in its new iteration as a pharmaceutical subscription company, was almost embarrassed by the games. When I visited enhanced.com a couple of months before the event, they had been relegated to a sub-heading on the home page. D’Souza’s showmanship had helped get attention for what was becoming a run-of-the-mill telehealth business like Hims & Hers—albeit one well timed to take advantage of a shifting regulatory landscape around peptides, which Robert F. Kennedy Jr., the US secretary of health and human services, has been pushing the FDA to approve despite a lack of evidence that they’re actually effective. 

Sagner is still loosely involved with Enhanced, but he says the medical commission was not consulted before it launched its line of performance products. (Jones did not respond to a question regarding this claim.) Sagner is scathing about what he sees as the “hype” around peptides. “I can tell you already, peptides do nothing,” he says—with the exception of human growth hormone and GLP-1. “The peptides that people use, black-market peptides that they buy online—they do nothing. We have tested them; 80% of them contain nothing. It’s saline solution, salt water, and some of them are contaminated.”


At the end of January 2026, a group of around 40 swimmers, weightlifters, and sprinters arrived in Abu Dhabi to start their individualized enhancement “protocol,” as Enhanced calls it. Officially, they would be taking part in a clinical trial, pending approval by the Abu Dhabi government and overseen by Guido Pieles, a Qatar-based cardiologist who has taken over the reins of Enhanced’s medical commission from Sagner.

Canadian weightlifter Boady Santavy strains to lift a barbell which is currently level with his hips
The day started with the weightlifters, but by late afternoon, only one of them had even attempted a world-record lift.
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They would be allowed to choose only from a menu  of specific FDA-approved drugs. Pieles broke them down into five categories: testosterone variants and growth hormones, which can both boost muscle mass; metabolic modulators that can tweak how the body burns fat; stimulants like Adderall to improve focus; and EPO, which can increase the amount of oxygen the blood is able to carry. While Enhanced’s team might recommend particular things, the athletes would have the final say on what they wanted to take, if anything. (As Oslo University’s Bjørnebekk points out, FDA approval “does not mean the substances are inherently safe, particularly not when used for enhancement purposes.”) 

There would be regular blood tests, heart scans, and brain scans and access to the best training facilities money could buy. Pieles and others say the clinical trial will help inform the line of supplements Enhanced is offering consumers, but there’s actually very little overlap between the drugs the athletes were taking and the substances the company is currently selling.  

Not long after they arrived in the Middle East, the athletes were awakened by the sound of explosions at a military base near their hotel. The US and Israel had struck Iran, and the Iranian regime was responding by peppering the region with missiles. “It wasn’t a pleasant situation,” says Andrii Govorov, the world record holder in the 50-meter butterfly, who a year earlier had become one of the first swimmers to join Enhanced. Govorov had some experience in these matters—back in Ukraine, he’d had a business selling cars that helped fund his swimming career, but he’d lost it after the Russian invasion.

Cody Miller standing by the pool in profile

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attendees sitting in the bleachers

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close-up of the calloused and powdered hands of a weightlifter with remnants and marks left by the tape.

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Swimming, sprinting, and weightlifting were the focus of the first Enhanced Games but in many ways the sports were the sideshow.

The conflict exacerbated delays in getting approval for the clinical trial and sourcing the drugs, and as a result, what was supposed to be a 12-week enhancement protocol got cut down to eight weeks. The athletes didn’t actually start taking the drugs until toward the end of March. For those who had always been clean, that represented the irreversible crossing of a line. “The first injection was very emotional, very tricky to navigate,” says Proud. “For me, that was the day I went from the Ben Proud that I always knew to a new person.”

Proud was joined in the enhancement program by his girlfriend, Emily Barclay, who had swum at college level without ever appearing at a major international event; she was working as a swimming teacher at a school in England. After that first injection, they left Abu Dhabi and spent a few days in Dubai as they reckoned with what they had done. “I just couldn’t be around the team,” Proud says. “I wanted to be by myself and feel those feelings, because it is a big deal to make that step, and I felt it.”

Those feelings were soon forgotten, though, as the drugs kicked in. Proud says he had incredible energy, and a drive to train that he hadn’t experienced before. Shania Collins, an American sprinter, says she had “increased strength, increased recovery, and increased mental clarity at practice.” Sagner and several athletes admitted there were some side effects: acne and some swelling around the joints; unwanted hair growth for the women, unwanted hair loss for the men.

close-up of runner Tristan Evelyn in profile
Like Kerley, sprinter Tristan Evelyn from Barbados competed without taking any drugs. She too won big in Vegas, besting her Enhanced peers in two events.
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One thing the athletes wouldn’t talk about, though, is what drugs they were actually taking. They all had the same reason: not wanting to encourage copycats who might take enhancements without a doctor on hand to tailor programs to their needs. 

The one exception was Thor Björnsson (testosterone, deca-durabolin, anastrozole, halotestin), a hulking Icelandic deadlifter and former World’s Strongest Man who played The Mountain on Game of Thrones. Björnsson first heard about the games on Joe Rogan’s podcast and was immediately interested. The rules for strongman competitions are somewhat less stringent than those for Olympic sports, though, and he actually had to reduce the number of substances he was taking to meet Enhanced’s FDA requirements.

Hafþór Júlíus Björnsson holding a barbell at mid thigh
Icelandic strongman Thor Björnsson actually had to reduce the number of substances he was taking to meet Enhanced’s FDA requirements.
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There is some debate over how much doping some of the athletes were actually doing. In a conversation last year, Gkolomeev told me he’d only really been “microdosing,” and he confirmed that his 2026 enhancement program was largely the same. Sagner says the doses the athletes were taking were a fraction of the amounts some Olympic athletes had been caught using in the past. I heard that a few athletes had decided not to take steroids or growth hormones and were only using modafinil, a narcolepsy medication that’s thought to improve focus.

The day before the games, I asked Angermayer what it would mean if clean athletes like Kerley and Armstrong won their events—what impact it would have on Enhanced’s business model of using sports as a showcase for its line of performance products if the people using those products didn’t actually win anything. “I know what you mean, but mostly our business model is headlines to drive attention,” he said. “Any debate is good for us.” 

In early May, Enhanced began trading on the New York Stock Exchange with an initial value of $1.2 billion.


That same week, it was finally go time. The athletes and coaches left Abu Dhabi and flew to Las Vegas, where they were put up in five-star luxury at the Conrad hotel inside Resorts World while they made their final preparations. 

When I got there a few weeks later, toward the end of May, I found it jarring to see these hulking presences walking around the casino in their Enhanced sportswear, weaving their way through packs of half-drunk tourists, with slot machines flashing in the background and cigarette smoke hanging in the air. I had expected the games to be a bigger deal within the city itself, but they were just one of a thousand things happening in Vegas that weekend—drowned out by a series of BTS shows at the football stadium, by the Golden Knights in the NHL playoffs, by No Doubt’s residency at the Sphere.

If this was a sporting earthquake, it was one whose tremors were mainly being felt online, where bodybuilding influencers livestreamed to their followers on Kick and Twitch, and where thousands watched on YouTube and Rumble. (D’Souza once told me he’d had “every major sports broadcaster” vying for the rights; in the end, Enhanced struck an exclusive streaming deal with Roku in the US.) 

A group of well-heeled guests in the VIP area face left to pose for a photographer
No tickets were sold, so the crowd was a mix of invited guests, investors, and influencers, some of whom had reportedly been flown in on a chartered jet.
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On the morning of the games, Enhanced held a medical symposium that was supposed to provide a taste of the company’s long-term objectives. The first speaker was Bryan Johnson, the longevity-obsessed entrepreneur famous for plowing his personal fortune into wild attempts to reverse his aging: receiving transfusions of his teenage son’s plasma, measuring his nighttime erections, taking more than 100 supplement pills a day. He spends $2 million per year on all this, but he looked pale and vampiric as he delivered the slightly off-brand message that, really, the most important thing was getting a good night’s sleep: “You don’t need to chase IV infusions; you don’t need to chase crystals. You don’t really need to do much of anything.”

At 2 p.m., I took two escalators from the conference room down to the arena, where spectators were filtering in. Though it had cost $50 million, it had been constructed in just three and a half weeks, and it showed; on the media tour the previous day, there were still loose screws on the floor of the bleachers. 

There were a few thousand seats in an open grandstand down one side, and two rows of VIP suites on the other. No tickets were sold, so it was a strange mix of invited guests, investors, and influencers, some of whom had reportedly been flown in from Los Angeles on a chartered jet. The rapper Tyga was the biggest name to grace the “blue carpet,” although I did also spot Fabio James, a Michael Jackson look-alike who has had surgery to make the resemblance even stronger. Rumors swirled that Peter Thiel might show up; they proved unfounded.

looking up at a balcony of excited attendees including a person at center who is dressed to resemble Michael Jackson.
In attendance was Fabio James, a Michael Jackson look-alike who has had surgery to make the resemblance even stronger.
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A few hours before the doors opened, journalists got a stern message from the organizers trying to bar us from interviewing guests. Still, I talked to a Cambridge professor who wanted to use Enhanced as a case study in innovation for his MBA students, a retired Brazilian swimmer with the Olympic rings tattooed on his forearm, and a biotech investor wearing an Enron hat. Proud’s family and friends were sheltered from the blazing sun in the shadow of the big screen. 

D’Souza was nowhere to be seen. Nor was he really mentioned at all—not during the introductory press conference, where Martin was introduced as the “founder of the Enhanced Games,” nor during the event itself, where the athletes showered praise on Angermayer and Martin. But the tens of millions D’Souza had banked from the stock listing likely softened any blow. Plus, he’s already moved on to his next provocative venture: an AI-powered arbitration platform designed to scrutinize the work of journalists on behalf of the rich and powerful.


As the sun set behind the hills, casting the arena in soft gold light, there were still no world records. That and the wins for clean athletes seemed to put the whole Enhanced project in jeopardy—the knives were already being sharpened online. I asked the organizers whether this threatened the legitimacy of the project. 

A wet Marius Kusch lays on the ground grimacing as though his eyes are stinging
German swimmer Marius Kusch was among the dozen or so athletes who hit personal bests in Vegas.
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“Our response is that enhancements help athletes improve and, in some cases, break records. And yes, some non-enhanced athletes also won—because talent and ability also matter,” Enhanced’s Jones emailed last week. “Breaking world records is incredibly hard as the margin is infinitesimal, as we witnessed. Ignoring that 13 athletes some of whom 10 years later broke personal bests is disingenuous and selective reporting.” 

Megan Romano was one of them, swimming faster in the 50-meter freestyle at 35 than she had at 22. And Emily Barclay knocked two seconds off her fastest time in the 100-meter freestyle, coming in second in that event and winning the 50-meter freestyle; she went home with a check for $375,000. “No one’s ever heard of this girl,” said Enhanced swim coach Brett Hawke afterwards. “She’s retired; she’s a nobody. She comes out tonight and swims a time that would have got a bronze medal in Paris.” For all the talk of “superhumanity” and pushing the boundaries of performance, making a 35-year-old feel 22 again is probably the perfect marketing message for the products Enhanced wants to sell. 

Megan Romano stands on the winners area, holding aloft her trophy while Christian Angermeyer and other Enhanced Game participants clap for her.
Angermayer cheers on swimmer Megan Romano, who swam faster in the 50-meter freestyle at 35 than she did at 22.
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Enhanced’s executives say people should take enhancements only with medical supervision, but price could be a barrier to heeding that advice. The battery of health tests the company was giving its athletes in the run-up to the games cost $25,000 per athlete per month. The drugs themselves start at $75 a month and go up toward $200. While Jones says the products “are in line with industry price points,” there were almost certainly people watching who saw the drug-altered physiques of athletes like Gkolomeev or Magnussen and decided to find cheaper, less safe alternatives on unlicensed websites.

“Many of these substances require medical supervision and prescriptions, and several are associated with potentially serious long-term health consequences,” says Bjørnebekk. “Presenting them in this lifestyle-oriented and commercial format risks normalizing use while downplaying the medical risks and uncertainties.”

Kristian Gkolomeev with his arm raised
Although his world record-breaking time won’t stand as the official record, swimmer Kristian Gkolomeev will walk away from the Enhanced Games with a million dollar prize in the 50-meter freestyle.
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Before the night was over,  Gkolomeev again had the chance to right the Enhanced ship. The final event of the night was the men’s 50-meter freestyle swim. His 2025 time had been surpassed by the Australian swimmer Cam McEvoy (without a supersuit) at the China Swimming Open a couple of months before, so he needed to lose another two-hundredths of a second to beat the new record of 20.88 seconds. 

Gkolomeev was wearing the same supersuit he’d used the previous year, and he’d shaved off his mustache for a little extra streamlining. But he messed up his start—doing four kicks instead of five—and was trailing Proud at the halfway mark. His long arms levered him forward, though, and he reached the wall in 20.81. The spectators were on their feet as “WORLD RECORD” flashed red on the big screen. Martin vaulted over the glass partition from the VIP suites, beaming, to embrace Gkolomeev. They had their record.

Or did they? Online, people shared screenshots from the video feed, purporting to show that the clock had stopped before Gkolomeev’s hand touched the pressure sensor at the end of the pool. An Enhanced spokesperson gave a statement to the Guardian dismissing this as “completely unfounded internet drivel.” But hey—live by the sword, die by the sword. It’s quite possible Gkolomeev didn’t care. He had another million in the bank. 

It remains to be seen if it’ll work out so well for the other athletes. Enhanced organizers recently announced a prize of $10 million for anyone who can break Usain Bolt’s 100-meter world record in 2027. They are adamant that the games will happen again next year. If they don’t, dozens of sporting careers will be over, and the athletes will join the long list of victims of VC-backed disruption.

My personal prediction is that Enhanced will pivot away from the risk and uncertainty of a flagship event—the company’s valuation plunged by almost $800 million when markets opened after what was perceived as an underwhelming set of results in Vegas. I expect you’ll see individual stunts and challenges, tightly controlled and filmed for virality and probably featuring your favorite YouTubers—think Björnsson bench-pressing Jake Paul.

D’Souza’s initial idea has served its purpose by capturing the world’s attention. But that won’t necessarily translate into success either. Though the company has had plenty of hype over the last 12 months, SEC filings published as part of its stock exchange listing reveal that it generated only $2,755 in revenue from its enhancements business in the first three months of 2026. Would what happened in Vegas be enough to juice sales?

Max Martin with his mouth open wide to cheer from the VIP stands
Martin, Enhanced’s CEO, cheers on athletes from the stands. Company leadership insists the competition will take place again next year.
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As the athletes gathered on the stage to receive their prizes, Martin took the microphone and addressed the crowd. “Enhanced is culture,” he said. “We are at the pulse of where the world is going.” On this, at least, he’s probably right. Testosterone replacement therapy is rapidly moving into the mainstream, and while the science may still not be there on peptides, they have certainly exploded in popularity in the two years since Enhanced launched. And there are undoubtedly more substances yet to be discovered that will promise to improve people’s lives, or at least hold their appearance in stasis. The enhanced age is upon us, whether we want it or not. 

As the fireworks went off and the Killers closed out the event with “When You Were Young” (“Congratulations to … whoever deserves it,” said frontman Brandon Flowers), I wondered what that might mean for us mere mortals. Invoking Hunter S. Thompson’s Fear and Loathing in Las Vegas in a story about drugs and Las Vegas may be a cliché, but it struck me that fear played a big part in all of this. Fear of missing out. Fear of getting old. Fear of never making a dime on your life’s pursuit. Fear of waking up one morning and seeing your flabby, sunken face in the mirror while everyone around you shines and grins and thrives with white-toothed, alien smiles.

Megan Romano in cap and goggles with her dry robe stands backlit by pink event lighting and stage fog
Before joining Enhanced, Romano had not swum competitively in almost a decade.
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But the big problem with Enhanced’s vision of superhumanity is the question of who gets to join in. “People will be able to enhance themselves if they have enough money,” Sagner had told me the night before the games. The rest of us, I fear, will just have to function as normal human beings.

Amit Katwala is a journalist and author covering science, culture, and where they collide. His latest book is Tremors in the Blood: Murder, Obsession and the Birth of the Lie Detector. He is based in London.

STAT+: As the U.S. looks on, European countries feel growing pressure on drug prices

LONDON — In Europe, two divergent paths are emerging as countries grapple with what to do about drug prices, affecting pharma companies and patients across the continent — and testing the influence of the U.S.

In the U.K., after a pressure campaign from both pharma companies and the Trump administration, the government has adopted more industry-friendly policies while also simply promising to spend more on medicines.

Germany, another of the continent’s biggest markets, is headed in the opposite direction. Facing growing deficits in its health budget, the government has proposed moves that would cut spending and increase the fees the industry has to pay.

Continue to STAT+ to read the full story…