5. Have sexIt's long been known that having regular sex can reduce stress, but there's now proof that it can do even more good for the body.
When you have an orgasm, your body produces something called oxytocin which helps fight insomnia.
Oxytocin has also been linked with pain relief and can soothe everything from PMS to lower back pain.
Having sex can also boost your immune system and protect you against colds and infections.