Neidan

Neidan is like a super special way of taking care of your body and mind that some people in China have been doing for a very, very long time.

It's kind of like if you had a really special box where you kept all your toys and gadgets, and you wanted to make sure that box stayed in tip-top shape, so you did special things like dusting it and putting in new batteries when needed.

With neidan, instead of a box, you're taking care of your body and mind like they're the most special and important things in the world. You use things like breathing exercises, special movements, and even some yummy foods to keep your insides healthy and happy.

And just like when you take care of your toys and gadgets really well, when you do neidan properly, you can feel better, be stronger, and think more clearly.