Sex Is Seriously So Good ... For Your Body, That Is

According to Mintz, sex can help to relieve and manage pain. The hormones secreted during orgasm can alleviate pain from headaches, arthritis, menstrual pain, and more. Mintz said that in one lab study of women, orgasm increased the women's pain threshold and lessened their ability to detect pain.

Sex improves overall health, and, generally, healthy people look better. In studies, women who have regular sex tend to look younger — seven to 12 years younger, Mintz cited. The after-sex glow isn't a myth; it actually is the real deal.

Sex is good for your immune system. According to Mintz, in one study, women who had genital contact or stimulation from their partner once or twice a week had higher amounts of immunoglobulin A (an antibody that is the body's first line of defence in fighting off disease and infections) than those who had sex less than once a week or not at all.

Sex decreases stress, said Mintz. While some of the benefits in partner sex may be due to the physical contact, most of the stress-reduction benefits are from orgasm, which means you can get these benefits alone or with a partner.

Sex also enhances sleep, although that's also more likely due to the orgasm than to the sex, noted Mintz. However, the bonus here is that whether you're getting it on with your partner or by your own damn self, you're going to sleep just fine tonight.