Sex is on the first level of Maslow's hierarchy of needs. It is a necessary physiological need like air, warmth, or sleep, and if the body lacks it will not function optimally. Without the orgasm that comes with sex, a person will experience “pain,” and as hedonism would predict, a person will minimize this pain by pursuing sex. That being said, sex as a basic need is different from the need for sexual intimacy, which is located on the third level in Maslow's hierarchy.