Are you ready to get a bit squeamish? It's time to learn about what happens to your body when you're asleep. The bad news is that many of these processes are, well, not the kind of things you'd mention to your prissy Aunt Agatha. Bodily processes can veer heavily towards the disgusting, and sleep is no exception. The good news is that they're all completely natural processes, so it's not necessary for you to stay up all night fearing something untoward in your bodily functions.
Humans, like all other mammals, have evolved to sleep for particular purposes: boosting the immune system, helping brain function and memory, helping energy levels and muscle repair, and general down time. Unfortunately for the squeamish, the human body also takes advantage of the sleeping period to do some gross stuff. And no, we're not just talking about the occasional fart in your sleep — though this happens because your muscles are nice and relaxed. Understanding these processes is necessary to get a full picture of the world of sleep and how the body uses it for recovery and health, but it does mean that we're going to have to get a little, well, messy. Here are a few of the weird, gross, and downright creepy things your body does while you're asleep.