以How to keep healthy为题,写一篇60～80词的短文,说说你的看法和建议

Nowadays more and more people are concerned about their health. But how to keep healthy? Different people may give different answers to this question. In my opinion, it is essential to do the following.
First,we must have a healthy diet.Most of the students like eating fried food
such as fried chicken,French fries and so on.But this kind of food isn't good
for us.It is unhealthy food.We should eat less fried food. 　
　　Second,we must have a good habit.I have a good
habit.I get up early and go to bed early.I exercise regularly when it is six
o'clock in the morning.So I have a strong body.But I go to bed very late,so I
should go to bed earlier than before. 　
Third,we should do more exercise to build up our bodies. Finally,we should be happy everyday. Because smile will make us younger.
If people follow these three ways of keeping fit, they greatly improve their health