Testosterone is a hormone found in both men and women, but found in a lot higher amounts in men. Testosterone increases at a significant rate once we start puberty and starts to decline at around the age of 30.
Testosterone effects play many vital roles, mostly in Men, including
muscle mass, fat storage, red blood cell production, male production,
energy and physical drive.
When Testosterone levels become low is can lead to many unwanted
symptoms including a decrease in sex drive, weight gain, depression,
moodiness, less hair, less energy and more.