Sleep is an important part of keeping healthy. Poor sleep for a long time will lead to various discomforts, even endocrine disorders, such as anxiety and nervousness, and even neurological disorders such as accelerated heartbeat, palpitation, elevated blood pressure, irritability and memory loss. Therefore, maintaining good sleep habits is very important for a healthy body. In order to have good sleep habits, it is suggested that you should try not to do strenuous exercise before going to bed, drink more coffee, tea and watch exciting movies or TV dramas.