We should have an optimistic attitude towards life. To grow up healthily, we must have an optimistic attitude towards life. To grow up healthily, first of all, we should have an optimistic attitude, and it is also necessary for life.Studying/Working to work hard. There is no doubt that hard work is also a necessary condition for a successful life. Doing sports also helps us grow up healthily. Besides, doing sports also contributes to a happy life.