7. Orgasms relieve insomnia.

Having orgasms can be better than taking a sleeping pill according to one study. Researchers theorize it's because of the release of neurochemicals, like endorphins, that are released during sex and facilitate relaxation and sleep.

8. Orgasms make your partner less likely to cheat.

One study conducted in Germany found that oxytocin, which is released when you orgasm, causes heterosexual men to be less likely to cheat and increases their attraction to their partner.

How is this a health benefit? Because monogamy is less likely to lead to the spread of STIs, many of which are achieving epidemic proportions.

9. Orgasms relieve stress.

Stress is a killer, folks, and orgasms may be the best protection. One study that interviewed 2,632 women between the ages of 23 and 90 found that those who masturbated regularly were more relaxed, a result of oxytocin, a stress-killing hormone.