Libido is a term used to describe sexual drive or desire for sexual activity. It is an important indicator of general health and quality of life, and is influenced by psychological, social, and biological factors. Sigmund Freud's theory of childhood sexuality proposed that libido develops through three stages, and Carl Jung argued that libido is the totality of psychic energy. Libido levels exist on a spectrum, from a lack of sexual desire to a desire to engage in sexual activities very frequently.
Biologically, sex hormones and associated neurotransmitters regulate libido in humans. Diabetes can have both biological and psychological effects that can decrease libido. Environmental stress, such as prolonged exposure to high levels of sound or bright light, can also affect libido. Freud's psychoanalytic theory suggested that the objective of psychoanalysis was to bring fixations to consciousness so that the energy of the libido would be released and available for conscious use in some kind of constructive sublimation.
Psychological factors, such as stress levels, can influence libido. Social factors, such as intimate relationships, can also play a role in libido. Empirical research is still needed to establish the scientific status of specific libido constructs in the theories discussed. In addition, modern doctors recognize the importance of libido as one of the key indicators of general health and quality of life.
