What do studies say about Testosteron Training?

Studies on testosterone and training show that physical activity—especially resistance training with large muscle groups and high intensity—can cause an acute, transient rise in testosterone levels. This effect is moderate and short-lived. In the long term, regular training does not sustainably increase testosterone in healthy men; in women the rise is even smaller. Some evidence suggests that overtraining or chronic stress may lower testosterone. The evidence base is human-moderate; large randomized controlled trials are lacking. A morning blood test (e.g., MyBody-X Body-Balance Check) can measure total and free testosterone, but a single value does not reflect training adaptation. To optimize testosterone through training, focus on recovery, sleep, and nutrition. Claims that specific exercises massively boost testosterone are overstated. Caveat: supplements or 'testosterone boosters' are mostly ineffective or risky.