Many people began to join the ranks of the valley, but blindly fasting led to physical abnormalities.

It is necessary to learn from it. Baidu does it for free, and some institutions will call it for free.

You can study first. Follow the homework, step by step. First of all, you should take a short-term approach. If you are a novice, you can eat some dates, or fruits and dried fruits. Don't rush for success. "

I hope my answer can help you too much,

Wish: Good health!