Well, health care should start from around the age of 30. The first thing to be healthy is to live long and the second is to live well. Whether you live a long life and whether your quality of life is high depends largely on your own views on health and your own lifestyle. People nowadays will pay attention to health care when they are old. Actually, it's already late! Health care should start at around the age of 30. Many living habits are developed in youth, such as smoking and drinking, so we should develop a good lifestyle from youth, rather than thinking about it in middle age and old age.