It's important for us to be healthy all our life. We can't study or work well without healthy body.
There're many ways to keep healthy. First of all we should keep taking exercises every day. We can walk to school instead of taking a bus. After school we can spend an hour playing ball games. If we live in a high-rise we can walk upstairs or downstairs. Second we should have a balanced diet. Finally we must remember: "Early to bed early to rise is the way to keep healthy wealthy and wise."