Can Testosteron help with Sport?

Testosterone can enhance athletic performance, especially muscle mass and strength. Evidence is strong (many controlled trials). However, use without medical indication carries significant risks: cardiovascular issues, liver damage, mood changes, and infertility are well-documented. It is also banned as a doping agent in most sports. Effects depend on dosage, training status, and genetics – a DNA test alone cannot guide safe or effective use. For healthy athletes, optimizing nutrition, sleep, and training is more effective and safer. The provided context contains no specific information on testosterone; this answer is based on established medical knowledge.