Abraham Morgentaler, M.D., is a urologist who specializes in male reproductive and sexual health. He is an associate clinical professor at Harvard Medical School, and director of Men's Health Boston. His book, Testosterone for Life is the culmination of 30 years of research. It is the first consumer book about low testosterone by a nationally noted specialist in the field, and it explains every aspect of this common medical condition and it's treatment (testosterone therapy). His other books include, The Male Body: A Physician's Guide to What Every Man Should Know About His Sexual Health and The Viagra Myth: The Surprising Impact on Love and Relationships. Morgentaler is a regular contributor to television and radio shows, and has appeared on NBC Nightly News, CBS Evening News, CNN with Anderson Cooper, and NPR's The Connection. His work on testosterone has been featured in The New Yorker, and his opinions about men's medical issues are regularly sought after by such prominent magazines as Men's Health, Newsweek and US News and World Report. His primary interest is the interface of sexuality, relationships, psychology, and biology.