ELI5: Explain Like I'm 5

5-Androstenediol

5-androstenediol is a chemical that our bodies make naturally and is important for growing and maintaining muscles, bones, and other tissues. It's a special type of hormone that helps our bodies stay healthy and strong, kind of like how eating healthy foods or getting enough sleep helps us feel good. Some people, like athletes or bodybuilders, might take extra 5-androstenediol to help them build more muscle, but this can be dangerous if they take too much or don't follow safe instructions from a doctor. So, just like with anything else, it's important to use 5-androstenediol in moderation and only under the guidance of a medical professional.