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.
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.
Sexual activity can be classified into the gender and sexual orientation of the participants, as well as by the relationship of the participants.
For example, the relationships can be ones of marriage, intimate partners, casual sex partners or anonymous.
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.
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