This fascinating and comprehensive book is the first to explore the complex biological process behind orgasm. Here, sexuality researcher and nurse Beverly Whipple, coauthor of the international best-selling book The G Spot and Other Discoveries about Human Sexuality, joins neuroscientist Barry R. Komisaruk and endocrinologist Carlos Beyer-Flores to view orgasm through the lenses of behavioral neuroscience along with cognitive and physiological sciences. The authors explain how and why orgasms happen, why they fail, and what brain and body events are put into play at the moment of orgasm. No topic is left unexplored, as the book describes the genitalia-brain connection, how the brain produces orgasms, how aging affects orgasm, and the effects of prescription medication, street drugs, hormones, disorders, and diseases. There are fascinating explanations of orgasms - in persons after spinal cord injury, in epileptics during seizures, and in transsexual men with surgically created vaginas. Covering every type of sexual peak experience in women and men - from intense to phantom - this informative and entertaining work illuminates the hows, whats, and wherefores of orgasm.