Diet and testosterone
Minimize your consumption of soy. There is a direct negative effect on testosterone levels when the estrogen levels in the body increase, which can be caused by soy protein. Increasing the testosterone level in the body by supplementing natural testosterone is much safer than the use of synthetic testosterone when relation of testosterone and brain is found out. Natural testosterone is generally extracted in laboratories. Using of natural testosterone alone may not improve testosterone level in body. It is usually metabolized and inactivated by the body. As a matter of fact, it is testosterone that makes men more aggressive than women. Decline in Testosterone It has been scientifically established that men start losing testosterone at 10% a decade after the age of thirty.