Not only is masturbation, like, a super fun time, research shows it's also good for your health. I know, it seems too good to be true! But it's just science. As this new video from AsapSCIENCE explains, those endorphins released when you're having some solo time are great for making you feel good. But they also help ease stress, reduce pain, and make menstrual cramps more bearable. And, when the hormone prolactin is released, you'll find it easier to drift off to sleep. But the health benefits just keep on coming: In men and women, masturbation can improve your sexual satisfaction by beefing up your pelvic floor muscles. And, in one study in men, masturbation increased the number of circulating white blood cells, which are a key part of the immune system. So there you go. You can now enjoy your super-healthy alone time in peace and — for the sake of your roommates — quiet.