Sex not only feels good. It can also be good for you. Here’s what a healthy sex life can do for you.

1. Helps Keep Your Immune System Humming “Sexually active people take fewer sick days,” says Yvonne K. Fulbright, PhD a sexual health expert. People who have sex have higher levels of what defends your body against germs, viruses, and other intruders. Researchers at Wilkes University in Pennsylvania found that college students who had sex once or twice a week had higher levels of the a certain antibody compared to students who had sex less often. You should still do all the other things that make your immune system happy, such as: Eat right.

Stay active.

Get enough sleep.

Keep up with your vaccinations.

Use a condom if you don’t know both of your STD statuses.

2. Boosts Your Libido Longing for a more lively sex life? “Having sex will make sex better and will improve your libido,” says Lauren Streicher, MD. She is an assistant clinical professor of obstetrics and gynecology at Northwestern University’s Feinberg School of Medicine in Chicago. For women, having sex ups vaginal lubrication, blood flow, and elasticity, she says, all of which make sex feel better and help you crave more of it.

3. Improves Women's Bladder Control A strong pelvic floor is important for avoiding incontinence, something that will affect about 30% of women at some point in their lives. Good sex is like a workout for your pelvic floor muscles. When you have an orgasm, it causes contractions in those muscles, which strengthens them.