Prior to this study, competition and aggression were believed to be the natural boosters of testosterone levels, but now researchers may begin to examine the sex hormone’s roll in the male body. "By focusing so much on the role of testosterone in aggression and competition, we have missed out on the importance of testosterone in a variety of other tasks," said Trumble, reports ABC Science . For Tsimane men in Bolivia, environment plays a bigger role in hormone behavior because they have a lifestyle that requires them to cultivate their own food. The spikes in testosterone levels enhance muscle performance, which improves their ability to cut trees and get food for their families.
Also known as “velvet bean”, Mucuna pruriens is a tropical plant that is known for its ability to reduce the level of prolactin (a female hormone) in the bloodstream. As the male body contains both male and female hormones, Mucuna pruriens lowers prolactin levels in men, which helps to prevent testosterone depletion. Another important benefit of Mucuna pruriens is its ability to lower the level of cortisol (. the “stress hormone”) in the bloodstream. Clinical research shows that cortisol essentially dismantles testosterone molecules before they are even able to leave the testes.