It's important for us to be healthy．But how can we keep healthy? First，you should eat fruit and vegetables three or four times a week．Then eat sonic tofu every day because it's good for people，both the young and the old Milk is also necessary（必的），especially for women．So you should have milk twice a day．It can help you to be strong Next，doing more exercises is better．You can do morning exercises or evening exercises．After supper you should take a walk．