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It is related to the idea that opposition between two people can heighten sexual tension, attraction and interest.
It has been shown that sexual activity plays a large part in the interaction of social species.
A study published in the journal Biological Psychology described how men who had had sex the previous night responded better to stressful situations, it suggested that if a person is regularly sexual, they're regularly relaxed, and when the person is relaxed, they cope better with stressful situations.
A 2007 study published in the Archives of Sexual Behavior 36, (no.
It releases tension, elevates mood, and may create a profound sense of relaxation, especially in the postcoital period.
From a biochemical perspective, sex causes the release of endorphins and increases levels of white blood cells that actually boost the immune system.
Some non-conventional autoerotic practices can be dangerous.
In some cultures, sexual activity is considered acceptable only within marriage, while premarital and extramarital sex are taboo.
Some sexual activities are illegal either universally or in some countries or subnational jurisdictions, while some are considered contrary to the norms of certain societies or cultures.
Although the primary evolutionary purpose of sexual activity is reproduction, research on college students suggested that people have sex for four general reasons: physical attraction, as a means to an end, to increase emotional connection, and to alleviate insecurity.
Most people engage in sexual activity because of pleasure they derive from the arousal of their sexuality, especially if they can achieve orgasm.
Sexual activity usually results in sexual arousal and physiological changes in the aroused person, some of which are pronounced while others are more subtle.