Why does my cat twitch and run? My 7 year old female cat has suddenly started twitching her back, running around, stops, grooms herself, and starts running again. I have her on a flea treatment and my other two cats don't do this at all. She only calms down if I pet her or she gets in her basket.
Psychological Causes. The most common causes of low libido in women are not due to physical or biological causes. Psychological causes like poor body image, low self-esteem, depression, stress and physical or sexual abuse are among the top reasons why women have low sex drive.
Testosterone and Women. Women also produce testosterone, although much less than men: A normal testosterone level in women is 15 to 70 ng/dL according to Medline Plus. In women, testosterone is produced in the ovaries and the adrenal glands. Similar to men, low T in women can be caused by a variety of medical conditions as well as by advancing age. In the years leading up to menopause, women normally experience a drop in testosterone levels.