Libido refers to a person's sex drive or desire for sexual activity. The desire for sex is an aspect of a person's sexuality, but varies enormously from one person to another, and it also varies depending on circumstances at a particular time. A person who has extremely frequent or a suddenly increased sex drive may be experiencing hypersexuality. Sex drive has usually biological, psychological, and social components. Biologically, levels of hormones such as testosterone are believed to affect sex drive; social factors, such as work and family, also have an impact; as do internal psychological factors, like personality and stress. There is no measure of what is a healthy level for sex. Sex drive may be affected by medical conditions, medications, lifestyle and relationship issues.
There is no necessary correlation between the desire for sex and actual sexual activity. For example, a person may have a desire for sex but not have the opportunity to act on that desire, or may on personal
