1 You need to have healthy eating habits and eat the right food to keep you healthy. 要有好的饮食习惯 ，吃对健康有益的食物。

2 Playing sports can also help you keep fit 安全的运动也可以让你保持健康。

3 Happiness is the best medicine 快乐是最好的药物。

4 You should say no to smoking and drinking.拒绝烟酒。