muscle xtx Processes in the human body (male), it is determined that a low testosterone level results in that: The man has not developed muscles; A voice more feminine than courageous; No aggression, strength, desire to be a leader; The man is practically not gaining muscle mass; Reduced sexual activity (as a result can lead to male infertility). Did you know… Physiologically, male, approximately 30 years of .
http://www.athleticgreensfacts.com/muscle-xtx/