Several sources say that in humans, any frequency of sexual intercourse might range from zero to 15 or 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).
- Sexual health: An interview with a Mayo Clinic specialist Archived 2005-12-06 at the Wayback Machine.
- Varcarolis, E.M. (1990). Foundations of Psychiatric Mental Health Nursing. New York: W.B. Saunders Company. p. 787. ISBN 0-7216-1976-2.
- "ACOG 2003 Poster, Sociosexual Behavior in Healthy Women". Retrieved 2009-01-06.
- "Frequently asked questions to the Kinsey Institute for Research in Sex, Gender, and Reproduction (Kinsey Institute)". Retrieved 2009-01-06.
- "Tammy Edwards v. Hyundai Motor Manufacturing Alabama LLC, and Mike Swindle", United States Courts, Civil Action 2:07cv908-MHT (WO), March 27, 2009
- "Equal Employment Opportunity Commission v. Mitsubishi Motor Manufacturing of America Inc." Archived 2016-03-04 at the Wayback Machine., Adam J. Conti, LLC, September 15, 1997