The conflict of the sexes is reflected in religious dogmas - from the commandment to marry your neighbor to the establishment of mutual sexual obligations of spouses. Codes of law created under his influence dictate who can or cannot have sex with whom. Its manifestations shape our sexual morality, determining what should cause us enthusiastic approval and what should cause contemptuous condemnation. The double standards it creates are widespread even in the most sexually egalitarian cultures on the planet. But while we all experience sexual conflict, most of us only see the tip of the iceberg: a cheating date, a politician's indiscretion, the slow disintegration of a once-happy marriage, the brutal end of a romantic relationship. Why Men Do It shows that the war of the sexes is something much deeper and more global than we think. David Bass reveals the mechanisms of this phenomenon, which have developed during long-term evolutionary changes in our sexual psychology, formulates a new unified theory of sexual conflicts and at the same time offers practical advice to men and women who would prefer to avoid these conflicts.