Written by: Vanessa Jerusalimiec (*Amsive Digital) | Reviewed by: Shelley Wyant | *MHP partners with Amsive Digital on news content The Effects of Testosterone and Aging As part of the normal aging process, men may start to notice changes in muscle mass, energy levels, and even hair growth. These symptoms can be caused by changes in testosterone. This hormone helps regulate strength, muscle mass, bone density, sex drive, and more. Here’s how testosterone and aging are related, so...