Okay, so you know how you are growing up and getting bigger and stronger? Well, there is a time in your life called adrenarche. It's when your body starts to make special hormones called androgens.
Androgens are important hormones that help with things like growing hair in new places, making your skin get tougher, and making your muscles stronger. They also help you get ready for when you become a big kid and your body starts to go through bigger changes.
Adrenarche happens when you are around 8-10 years old. That's a little bit before you start going through puberty. It's a normal part of growing up and it helps your body get ready for all the other big changes that are going to happen. So don't worry, it's all a part of growing up and becoming stronger!