Testogen Testosterone Booster Will Help You Elevate Testosterone Levels Naturally Without Side Effects! Is It Safe To Buy at Walmart, GNC or Amazon? Testosterone plays a vital role in physical and emotional development of men. Physical development include activities like muscle building, production of red blood cells and sexual well-being. Personality traits like aggression, dominance, competitiveness and self-confidence are developed along with other environmental factors. Testosterone level starts dropping after 25 years of age but significant changes in body can be seen after 30. Decrease in testosterone levels after 30’s is a common phenomenon more commonly as Low T. Symptoms of Low T Loss of muscle Increase in belly fat Decrease in bone density, joint pain Low energy levels Reduction in sex drive, erectile dysfunction or impotency Depression, rage and frustration for no reason Fatigue After 25 years of age, there is a 1-2% testosterone drop in your body. There is no ...