Dr. William G. Crook's research has shown that many health disorders in both men and women can be traced to an overgrowth in the body of common yeast, Candida albicans. This revised edition of his popular handbook on the subject contains 25 percent new information, including data on health problems in children, interstitial cystitis, endometriosis, multiple sclerosis, alternative medicine, and non-prescription anti-yeast medications.