Science sex

This page has been archived and is no longer updated. Birds do it, and bees do it. Indeed, researchers estimate that over But why is sexual reproduction so commonplace? People typically employ several arguments in their efforts to explain the prevalence of sexual reproduction. One such argument is that organisms engage in sex because it is pleasurable.

Historian and philosopher Sarah Richardson interrogates the science of sex and gender. What wrongs have these mothers committed? Not any sort of physical violence: these articles describe a series of subtle, poorly understood chemical changes, passed from mother to child during pregnancy, that cause obesity and other long-term impairments. But such charges stand on shaky ground, declares Sarah Richardsonin her forthcoming book, The Maternal Imprint University of Chicago,

Clue is on a mission to help you understand your body, periods, ovulation, and so much more. Start tracking today. A happy sex life is an important part of a fulfilling life. What a happy sex life means is subjective, as our sexual desires, expectations and needs differ from one another and change as we grow and age. Some people want to have sex daily, while other people are content never having sex throughout their lifetime.

S ex is the most talked-about, joked about, thought-about issue in our culture. We are not short of information on sexual practices — thank you, Fifty Shades of Grey — but there is a general absence of accurate detail of what happens to our bodies during, and as a result of, the act. Yet sex is good for our mental and physical health. It lowers the heart rate and blood pressure. It may boost the immune system to protect us against infections and it certainly lowers stress.