Forty-three percent of American women -- about 40 million -- complain that they have lost interest in sex or it just is not as enjoyable as it used be. Many report diminished sexual sensation or say they've lost their ability to achieve an orgasm. Some have discomfort during intercourse.

These symptoms may be an indication of female sexual dysfunction or FSD, a recognized medical condition in which a woman experiences a chronic, notable change in her sexual response that concerns her.