Many people in the world always want to stay along time with their family, friends, and others. First, you have to do exercise every day, you just spend a little bit of your time to do it. Second, you should drink a lot of water every day, especially when the morning because it can clean your stomach and make you fresh and power. Good health is an asset. It is the most valuable possession in human life. To speak the truth, it is the greatest wealth of all things on earth. It is said that good health is the source of all happiness. Good health and happiness go side by side. Health is the sound state of the body as well as of mind. A healthy man must have soundness of mind as well as soundness of body. To be healthy, one must grow up in a balanced way. To keep good health, one has to eat a balanced diet, drink clean water, take fresh air, rest properly and take physical exercise regularly. For the retention of mental health, one has to control one's emotions and one has to have patience and respect for other people's feelings and rights. However, life without good health is boring and unbearable. It is so often heard that a person possessing ill health prefers death to life. So, everyone should take care of his health.