Testosterone is the hormone that triggers puberty in males.
Testosterone is a hormone found in humans, as well as in other animals. In men, the testicles primarily make testosterone. Testosterone production starts to increase significantly during puberty and begins to dip after age 30 or so. Testosterone is a sex hormone that plays important roles in the body.
- Levels of testosterone tend to drop as men age.
- It is a type of androgen produced primarily by the testicles in cells called the Leydig cells.
- Testosterone supplements are prescribed only for specified conditions and not to counteract the natural, age-related drop in testosterone levels.