准备一篇80个单词的作文，题目为How to Keep Healthy（如何保持健康）。

it is important for people to keep healthy. If you want to be healthy, you had better do these things below.
First, it is necessary to keep a balanced diet. We should eat more fruit and vegetables, and drinking milk is good for your health. Next, it is important to do regular exercises. We should keep on doing morning exercise. It will help us to renew our spirits and release our stress.
Then, it is essential to keep high mood.
If we could do all of these things, we will be bound to keep healthy.