用单词的正确形式完成短文

    Get tired easily? Has a doctor said he can't find anything wrong with you? You might be in an unhealthy state between health and disease. Doctors often tell you to be  of the importance of forming good living habits. It is the key to  you from being unhealthy. You need to rest,  and take part in open air activities. They also say a balanced diet is helpful to  being unhealthy. Besides, you need to stay in a good mood. Always think about your goals in life and how happy you are when you complete them.