Showing results for "Evolution" in Sexual & Reproductive Health

With acuity, humor, and respect for human diversity, The Shortest History of Sex reveals where the many facets of our sexuality—chemical, anatomical, behavioral, social—come from. Chasing down our evolutionary family tree, from the first aquatic creatures to primate societies, David Baker sheds light on our baffling array of passions, impulses, and fetishes, and guides us toward a clear understanding of one of the deepest, most abiding forces of human nature.

Researchers of human behavior have identified an "orgasm gap": Men usually orgasm during intercourse, whereas women often do not. This book addresses this mystery. The two leading explanations are either that women are "psychologically broken"—Freud's theory—or badly designed—the "by-product theory." However, there is a much more compelling third explanation. Evolutionary biology, anatomy, physiology, and direct sex research suggest women have evolved under their own selection pressures and orgasm is a fitness-increasing consequence of such selective factors.

Parents and parents-to-be are bombarded with information, from what to expect to what to do (and not to do) when it happens. But what they may not realize is that from the chemistry of pregnancy tests to the vacuum physics of breastfeeding, there is fascinating science at the heart of every aspect of creating and raising a new human.