The LUST system serves the survival of the species primarily, however, it is also likely “that a satisfying sex life promotes a competent immune system and longevity, just as physical exercise does”.
Well bonded, sexually satisfied people (of all sexualities) live longer than those without the security of happy relationships.
Hunger, severe pain, fear, and anger generally reduces sexual urges for both genders. However, male and female LUST systems have been found to be quite different in distinct ways, with women’s erotic state of mind influenced by cyclical changes and men more responsive to social variables. The SEEKING system drives active behaviour, working with the LUST system to find appropriate sexual companions. Activation of the LUST system is expressed in a variety of ways from subtle blushing, to erections.
Blocking of erotic experiences may have an impact on immunity and longevity, as well as effecting sexual dysfunctions such as abnormally low sexual desire (libido).
“The blessings of fulfilling loving relationships, with sexual satisfaction as a solid component, seem a tonic for body and soul, allowing many humans to live much longer beyond reproductive years” (Panksepp & Biven, 2012)