Not so many people know that the problem of low testosterone may be also applied to women. In the female body testosterone hormone is produced by the ovaries. For women this hormone is responsible for hair growth, muscle strength, libido, and normal level of physical activity. Low testosterone in women influences the sensitivity for sex. It may sound surprising, but the low level of the main men hormone is affecting women more strongly. For a woman the normal level of testosterone in blood is not less than 70 ng per dl. The level increases during the pregnancy, but it goes down after the menopause, in cases of surgery operations on the ovaries, and in all cases of decreasing it strongly affects the sexual activity of a woman. Though, menopause is not supposed to be the main reason of low testosterone.