假如你叫李华，你的朋友Jenny来信向你询问如何保持健康。请你给他发一封E-mail提些建议。内容要点如下：
1. 注意合理饮食,多吃水果蔬菜；
2. 保证充足睡眠，至少8小时；
3. 坚持锻炼身体，多参加体育运动。
注意：
1.词数100左右；
2.可适当增添细节，以使行文连贯；
3.邮件的开头结尾已为你写好，不计入总词数。
Dear Jenny,
How nice to hear from you! In your letter you asked me how to keep healthy. I would like to give you some advice.
                                                                          
                                                                          
                                                                          
                                                                          
                                                                          
                                                                          
Yours
Li Hua