In human sexuality, a sex life is a sector of a person's day-to-day existence which may involve sexual activity or represent the absence of sexual activity. In general parlance, the term can have many sub-meanings and social layers, but generally includes the following:

Sex frequency

Several sources say that in humans, frequency of sexual intercourse might range from 0 to 20 times a week. In the United States, the average frequency of sexual intercourse for married couples is 2 to 3 times a week. It is generally recognized that postmenopausal women experience declines in frequency of sexual intercourse and that average frequency of intercourse declines with age. According to the Kinsey Institute, average frequency of sexual intercourse in US is 112 times per year (age 18–29), 86 times per year (age 30–39), and 69 times per year (age 40–49). In a number of sexual harassment cases, certain employees and others have been asked about their sex lives, often repeatedly, including in a case filed against Mitsubishi Motor Manufacturing of America by the Equal Employment Opportunity Commission (EEOC).