Dear Phuong Nhi,
How are you? I’m very happy to get your letter. I’ll give you some advice to keep fit and healthy. Those are some experiences from me. It’s easy to keep fit and stay healthy.
There are many way to keeping fit. First of all, doing exercise regularly will help you to stay in shape, young and healthy longer. You can start by jogging for 20 minutes after dinner or early in the morning. If you don’t like the gym, you can take up swimming.
Secondly, your diet plays an important role. In order to have a good health, you should eat more fruit and vegetables but less fattening or fast food. Finally, your work regine and life-style are also factors which affect your health. You should work and relax properly, don’t work to hard, don’t play to much. Relaxation improves your health physically and mentally.
I hope to have a reply from you soon.