Studies suggest that losing can lead to a temporary decrease in testosterone, especially if the loss is perceived as a significant blow to one’s social standing. It’s best to focus on a healthy diet and lifestyle. While some supplements are marketed as testosterone boosters, most have limited scientific evidence to support their claims. Older individuals may not experience the same hormonal response to fighting or competition as younger individuals. While high testosterone can contribute to increased aggression, it’s not the sole determinant. Is there a link between aggression and high testosterone in general? In its early days, MMA was not regulated as tightly as other professional sports, allowing some fighters to use substances like TRT with minimal oversight. However, as athletes began to understand the benefits of keeping testosterone at an optimal level, they started to seek out TRT for its performance-enhancing effects. Because testosterone plays a role in tissue repair and muscle growth, TRT offered an option to support faster healing and recovery, potentially helping fighters return to the octagon sooner. A successful fighter must combine skill with physical power, but without enough testosterone, it can be hard to build and maintain the level of muscle and recovery required. Some fighters who had been in the sport for a long time and were getting older felt that their performance was declining due to this natural drop. "What people have to understand is a testosterone exemption is granted for a disease, not for a low lab value," said Auchus, a consultant to USADA. Some fans admired his resurgence and impressive performances, while others criticized him, believing TRT gave him an unfair advantage over non-TRT opponents. After TRT was banned, Belfort’s performance declined, and he struggled to achieve the same level of dominance he showed during his TRT period. During his TRT era, Vitor Belfort secured notable victories with devastating knockouts over top fighters like Michael Bisping, Luke Rockhold, and Dan Henderson. At the time, TRT was a legal and medically recognized treatment in some jurisdictions. It shows how even well-intentioned medical interventions can lead to complex issues around fairness and safety. The NSAC argued that TRT was no longer consistent with their mission to keep sports fair and safe. Belfort’s renewed power and fighting ability earned him the nickname "TRT Vitor." His results in the octagon quickly sparked discussions among fans, other fighters, and MMA organizations. In 2013, he had a streak of powerful performances, winning multiple fights by knockout and demonstrating impressive speed and strength. TRT was not considered cheating at that time because athletes had to stay within a specific testosterone range and were tested regularly to avoid misuse. As MMA evolves, the legacy of "TRT Vitor" will continue to influence how fighters, fans, and regulators view the role of medical support in the sport. In conclusion, Vitor Belfort’s experience with TRT is a reminder of the fine line between therapy and enhancement in sports. In MMA and other combat sports, where strength, endurance, and speed are crucial, even small enhancements can have a big impact. Looking to the future, the discussion of TRT and similar therapies in sports will likely continue, especially as athletes look for ways to extend their careers. For athletes using TRT, especially those not under careful medical monitoring, there were increased risks of heart issues, hormonal imbalances, and other health problems. For the time being, however, both ethical and medical concerns weigh heavily against its widespread acceptance in professional sports. TRT in sports remains controversial because it sits at the intersection of medical science and fair competition.