A one-night stand is a single sexual encounter in which there is an expectation that there shall be no further relations between the sexual participants. The practice can be described as “sexual activity without emotional commitment or future involvement”.

A one-night stand can occur for different reasons, which vary between people. Examples of one-night stand participants include young adults exploring their sexuality; single people seeking to engage in sexual activity without any sort of commitment or relationship; or married people who desire extramarital sex without disturbing their marriage or family relationships through extramarital romantic relations. A one-night stand may be planned, in which at least one of the participants intended for the sexual encounter to be a one-night stand prior to participating.

This episode explore the physiological effect of night stand and the things it can cause to this century.