The drugs prescribed to athletes that led to record-breaking performances are not a single miracle pill but a carefully designed cocktail of FDA-approved substances — testosterone, human growth hormone, anabolic steroids, and peptides like BPC-157 and ipamorelin — administered under medical supervision as part of the Enhanced Games, a new Olympic-style competition that openly permits doping. In February 2025, Greek-Bulgarian swimmer Kristian Gkolomeev shattered the 50-meter freestyle world record with a time of 20.89 seconds after just two weeks on a performance-enhancing drug regimen, collecting a $1 million bonus and igniting one of the most polarizing debates in modern sports. Founded by Australian businessman Aron D’Souza, the Enhanced Games is scheduled to hold its inaugural event May 21–24, 2026, in Las Vegas, with up to $25 million in prize money across swimming, track, and weightlifting events.
For those of us who study the brain and cognitive health, this story raises urgent questions that extend well beyond the stadium. The same hormones and growth factors being used to push athletic performance into uncharted territory also have profound effects on the brain — influencing mood, cognition, neurodegeneration risk, and long-term mental health. This article examines what these drugs actually are, how they produced a world record, what the medical establishment says about the risks, and why anyone concerned about brain health should be paying close attention.
Table of Contents
- What Are the Drugs Prescribed to Enhanced Games Athletes That Broke World Records?
- How a Two-Week Drug Protocol Shattered a 16-Year-Old Swimming Record
- The Neurological and Cognitive Risks of Performance-Enhancing Drugs
- Medical Supervision Versus Unsupervised Use — Does Oversight Make Doping Safe?
- The Legal and Regulatory Fallout — Who Decides What Athletes Can Put in Their Bodies?
- What the Enhanced Games Tells Us About the Future of Human Enhancement
- Watching the Data — What Comes Next for Athletes and for Brain Science
- Conclusion
- Frequently Asked Questions
What Are the Drugs Prescribed to Enhanced Games Athletes That Broke World Records?
The Enhanced Games does not hand athletes a single substance. Instead, its medical team creates bespoke drug regimens tailored to each competitor’s goals — some designed for raw speed and power, others targeting endurance, recovery, or mental focus. According to Australian swimmer James Magnussen, who publicly disclosed details of his protocol in may 2025, the substances offered include testosterone, human growth hormone (HGH), anabolic steroids, BPC-157 (a synthetic peptide studied for tissue repair), CJC-1295 and ipamorelin (both growth hormone–releasing peptides), and thymosin (an immune-modulating peptide). Every substance must be legal in the United States and prescribed by a licensed physician. Illegal recreational drugs, including cocaine, are banned. What makes this program unusual is not the drugs themselves — many have been prescribed for decades to treat legitimate medical conditions like hypogonadism, growth hormone deficiency, and muscle-wasting diseases. It is the scale and the intent.
Athletes in the Enhanced Games undergo these protocols as part of a clinical trial approved by the UAE Department of Health, monitored at Sheikh Shakhbout Medical City in Abu Dhabi under a 10-member independent medical commission. Roughly 39 athletes were training in Abu Dhabi ahead of the event as of early 2026. The framing is medical and supervised, but the purpose is unambiguously to break records that drug-tested athletes cannot touch. The distinction matters. Testosterone replacement therapy prescribed to a 55-year-old man with clinically low hormone levels looks very different, pharmacologically and ethically, from testosterone prescribed to a 31-year-old elite swimmer to gain 10 pounds of lean muscle in two months. The drugs are identical. The doses, the context, and the consequences for the body and brain are not.
How a Two-Week Drug Protocol Shattered a 16-Year-Old Swimming Record
Kristian Gkolomeev’s world-record swim is the most concrete evidence yet of what medically supervised doping can do. At the Greensboro Aquatic Center in February 2025, the former NCAA champion touched the wall in 20.89 seconds in the 50-meter freestyle, beating the previous record of 20.91 seconds set by Brazil’s Cesar Cielo in 2009. Gkolomeev reported that he had been taking performance-enhancing drugs for only about two weeks before that swim. Between his February and April performances, Gkolomeev underwent a full two-month doping cycle and gained 10 pounds of lean muscle mass. He also wore a Jaked polyurethane suit — the same type of “super suit” that was banned from competitive swimming after the 2009 season because of its dramatic impact on times. Even without the suit, swimming in a standard textile jammer, Gkolomeev clocked 21.03 seconds, which beat Caeleb Dressel’s 2019 textile-suit record of 21.04.
He was awarded the Enhanced Games’ $1 million world-record bonus, the first such payout in the organization’s history. However, context is critical. Gkolomeev was already an elite swimmer before he took any substances — he was a former NCAA champion with years of international experience at age 31. The drugs did not transform a recreational athlete into a world-record holder. They gave an already exceptional performer a marginal but decisive edge. This is an important caveat for anyone tempted to extrapolate these results to the general population or to assume that the same substances would produce proportional benefits in non-athletes. In brain health terms, the analogy would be giving a cognitively healthy person a drug designed for Alzheimer’s patients: the baseline matters enormously, and “enhancement” in one population does not predict the same outcome in another.
The Neurological and Cognitive Risks of Performance-Enhancing Drugs
The brain is not a bystander when the body is flooded with supraphysiological doses of testosterone, growth hormone, and anabolic steroids. These substances cross the blood-brain barrier or influence it indirectly, and the long-term cognitive consequences are a growing area of concern in neurology and sports medicine. Anabolic steroids and high-dose testosterone have been linked in clinical literature to mood instability, increased aggression, anxiety, and in some cases psychotic episodes — what popular culture calls “roid rage” but what clinicians recognize as a genuine neuropsychiatric side effect. Chronic use has been associated with structural changes in the brain, including reduced cortical thickness and altered white matter integrity, particularly in regions involved in impulse control and emotional regulation. A 2023 study in Biological Psychiatry found that long-term anabolic steroid users showed accelerated brain aging compared to non-users, with patterns that overlap disturbingly with early markers of neurodegenerative disease.
The World Anti-Doping Agency (WADA) was blunt in its assessment, calling the Enhanced Games “a dangerous and irresponsible concept” and stating plainly: “Performance-enhancing drugs have taken a terrible physical and mental toll on many athletes. Some have died.” Human growth hormone presents its own set of neurological questions. While GH and its downstream mediator IGF-1 play important roles in brain development and may have neuroprotective properties at physiological levels, excess GH — as seen in acromegaly — is associated with cognitive deficits, sleep apnea (itself a risk factor for dementia), and peripheral neuropathy. The peptides BPC-157, CJC-1295, and ipamorelin are less studied in humans, and their long-term effects on the central nervous system remain largely unknown. That gap in knowledge is itself a risk. The Enhanced Games’ clinical trial framework may track short-term safety, but the neurodegenerative consequences of these regimens may not emerge for decades.
Medical Supervision Versus Unsupervised Use — Does Oversight Make Doping Safe?
The Enhanced Games’ central argument is that doping under medical supervision is safer than doping in secret, which is what many athletes already do. There is a kernel of logic in this: athletes who dope without medical oversight often obtain substances from unregulated sources, guess at dosages, and have no monitoring for cardiovascular, hepatic, or hormonal complications. The Enhanced Games counters this with its UAE Department of Health–approved clinical trial, its 10-member independent medical commission, and its base at Sheikh Shakhbout Medical City in Abu Dhabi. The comparison, however, has significant limitations. “Supervised” does not mean “safe.” Physicians prescribing chemotherapy are supervising a dangerous intervention because the alternative — untreated cancer — is worse. The risk-benefit calculation for a healthy 25-year-old athlete taking supraphysiological testosterone to swim faster is fundamentally different.
The medical commission can monitor bloodwork, cardiac function, and liver enzymes in real time, but it cannot prevent the long-term remodeling of cardiac tissue, the potential acceleration of neurodegenerative processes, or the psychological dependency that sometimes follows steroid cycles. The U.S. Anti-Doping Agency (USADA) has also warned athletes about the risks, and neither USADA nor WADA have endorsed the premise that medical supervision makes performance-enhancing drug use in healthy athletes acceptable. For families navigating brain health decisions — whether considering hormone replacement therapy for a parent with cognitive decline or evaluating supplements marketed as cognitive enhancers — this distinction is worth internalizing. The presence of a doctor in the room does not automatically convert a risky intervention into a prudent one. What matters is whether the intervention addresses a genuine medical need, whether the evidence base supports its use in that population, and whether the long-term risks have been adequately studied.
The Legal and Regulatory Fallout — Who Decides What Athletes Can Put in Their Bodies?
The Enhanced Games has not only challenged athletic norms but also provoked a legal and institutional crisis. On June 3, 2025, World Aquatics adopted By-law 10, which bans athletes, coaches, and officials from all World Aquatics–sanctioned events — including the Olympics — if they participate in, support, or even publicly endorse the Enhanced Games, regardless of whether they actually use any substances. The ban is sweeping: an athlete who competes clean at the Enhanced Games would still be barred from Olympic competition. In response, the Enhanced Games filed an $800 million antitrust lawsuit against World Aquatics, WADA, and USA Swimming, alleging these bodies were unlawfully preventing athletes from competing. U.S. federal judge Jesse Furman dismissed the case in November 2025, and no amended complaint was filed, making the dismissal final.
The legal defeat means the Enhanced Games has no judicial protection for athletes who want to compete in both systems. This creates a stark choice for athletes. British Olympic silver medalist swimmer Ben Proud signed with the Enhanced Games but said the organizers “aren’t asking me to take anything” and expressed uncertainty about whether he would use substances. Sprinter Reece Prescod of Great Britain initially said he would compete clean but later stated he was “open” to using PEDs and prepared to “get involved.” Fred Kerley, a two-time Olympic 100-meter medalist from the United States currently serving a suspension, became the first U.S. track athlete to sign up. Each of these athletes is making a calculation that involves career longevity, financial incentive — events pay up to $500,000, with a $1 million world-record bonus — and an irreversible reputational and regulatory decision.
What the Enhanced Games Tells Us About the Future of Human Enhancement
The Enhanced Games is not happening in a vacuum. It sits at the intersection of several accelerating trends: the normalization of testosterone replacement therapy in aging men, the boom in peptide therapies marketed for longevity and recovery, the growing public skepticism of institutional sports governance, and a broader cultural fascination with human optimization. Approximately 100 athletes are expected to compete in the inaugural Las Vegas event across swimming (50m and 100m freestyle and butterfly), track (100m sprint and 100/110m hurdles), and weightlifting (snatch, clean and jerk).
For the brain health community, the Enhanced Games is a high-profile test case for a question that will only become more relevant: when does pharmacological enhancement cross the line from therapy into something else, and who gets to draw that line? The same testosterone prescribed to an aging man to address clinically low hormone levels and preserve cognitive function is being prescribed to a 31-year-old swimmer to win a million dollars. The molecule does not know the difference. The consequences, both for the individual and for the norms we build around human health, depend entirely on context.
Watching the Data — What Comes Next for Athletes and for Brain Science
The Enhanced Games’ clinical trial structure, whatever its ethical shortcomings, will generate data. If that data is published transparently — a significant “if” — it could provide some of the first controlled observations of how bespoke PED regimens affect biomarkers, body composition, and performance in elite athletes over defined time periods. Whether it will track neurocognitive outcomes remains to be seen. Given that the inaugural event is scheduled for May 2026, the earliest longitudinal data on brain health effects would not be available for years.
In the meantime, the most responsible position for anyone concerned about cognitive health is to resist the temptation to extrapolate from elite athletic performance to everyday brain enhancement. The drugs that helped Kristian Gkolomeev swim 20.89 seconds are powerful, real, and medically significant. They are also being used in a context — young, healthy, genetically elite athletes under intensive monitoring — that has essentially nothing in common with the typical person seeking to protect their brain as they age. The science of neuroprotection and cognitive preservation is advancing on its own terms, and it does not need to borrow credibility from a spectacle in Las Vegas.
Conclusion
The Enhanced Games has pulled back the curtain on what performance-enhancing drugs can do when administered openly and under medical supervision to elite athletes. Kristian Gkolomeev’s 20.89-second 50-meter freestyle — achieved after just two weeks on a PED regimen and rewarded with a $1 million bonus — is a vivid demonstration of pharmacological power. Testosterone, HGH, anabolic steroids, and a suite of peptides are the substances behind these results, prescribed in bespoke combinations by physicians operating under a clinical trial framework in Abu Dhabi. The regulatory backlash has been severe, with World Aquatics imposing lifetime bans and an $800 million lawsuit failing in federal court.
For those of us focused on brain health and dementia prevention, the Enhanced Games is a cautionary case study more than an inspirational one. The same hormones and growth factors that build muscle and shave hundredths of a second off swim times also act on the brain, and the long-term neurocognitive consequences of supraphysiological dosing remain poorly understood. Medical supervision reduces some acute risks but does not eliminate the unknown long-term ones. As pharmacological human enhancement becomes more mainstream — whether in sports arenas or anti-aging clinics — the need for rigorous, independent research on cognitive outcomes has never been more urgent. The brain deserves at least as much caution as we give to a swimming pool.
Frequently Asked Questions
What specific drugs are athletes using in the Enhanced Games?
Athletes have disclosed using testosterone, human growth hormone (HGH), anabolic steroids, BPC-157, CJC-1295, ipamorelin, and thymosin. All substances must be legal in the United States and prescribed by a licensed doctor. The medical team creates individualized regimens based on each athlete’s sport and goals.
Did performance-enhancing drugs actually break a world record?
Yes. In February 2025, Kristian Gkolomeev swam 50 meters in 20.89 seconds, breaking Cesar Cielo’s 2009 record of 20.91 seconds. Gkolomeev reported being on PEDs for approximately two weeks before the swim. He also wore a polyurethane “super suit” that has been banned from standard competition since 2009.
Can athletes compete in both the Enhanced Games and the Olympics?
Currently, no. World Aquatics adopted By-law 10 in June 2025, banning anyone who participates in, supports, or endorses the Enhanced Games from all its sanctioned events, including the Olympics. An $800 million antitrust lawsuit challenging this ban was dismissed by a U.S. federal judge in November 2025.
Are the Enhanced Games’ drug protocols safe for the brain?
This remains unknown. Anabolic steroids and supraphysiological testosterone have been associated in clinical research with mood instability, structural brain changes, and patterns resembling accelerated brain aging. The long-term neurocognitive effects of the specific peptide combinations used in the Enhanced Games have not been studied. WADA has stated that performance-enhancing drugs “have taken a terrible physical and mental toll on many athletes.”
How much money can athletes earn at the Enhanced Games?
Events pay up to $500,000, with a total prize pool of $25 million for the inaugural 2026 competition. Athletes who break a world record receive a $1 million bonus. Gkolomeev was the first recipient of this bonus after his 50-meter freestyle record.
Is supervised doping safer than unsupervised doping?
Supervised doping with proper medical monitoring reduces certain acute risks, such as contaminated substances or dangerous dosing errors. However, medical supervision does not eliminate long-term risks including cardiovascular remodeling, hormonal disruption, or potential neurodegenerative effects. Neither WADA nor USADA has endorsed the premise that supervised doping is safe for healthy athletes.
