What's sex got to do with it? The more than 120 entries in "The Sex Encyclopedia", arranged in an easy-to-use A-to-Z format, provide the most up-to-the-minute information on sexual health, safety, and technique from dozens of the nation's top doctors, clinicians, researchers, and sex therapists. <P>Surprising new information, presented in frank detail, provides solutions for sexual problems connected to depression, fatigue, headaches, diabetes, heart attacks, cholesterol and arthritis. Innovative advice on nutritional needs, exercise, and on the importance of communication keeps you functioning at your sexual peak. <P>"The Sex Encyclopedia" includes chapters on: <P>Aphrodisiacs, Pregnancy and Childbirth, Safer Sex, Orgasm, Stress, Kissing, Testosterone, Sex and the Common Cold, Medications <P>It also includes material on how to find the right kind of help for overcoming a wide variety of sexual problems, and expert advice for treating impotence and other sexual dysfunctions as well as strategies for rekindling sexual pleasure in marriage.