Despite the fact that testosterone is considered to be a purely male hormone, it is actively released in the body of the fair sex also. What is testosterone for women ? It is besides the fact that activates sex receptors of women and excites a normal sex drive. It is responsible for the regulation of muscle tissue and fat cells. That is, it prevents women from becoming overweight. Due to testosterone the body can use as fuel, not only glucose but also the fat, which in turn positively affects the appearance of the girl. Because of this, one could argue that if you start to gain weight with age – you need to check the hormone levels in your body.