Health care comes from the Japanese meaning of "protection": protecting health. It also refers to the comprehensive measures taken by medical institutions to protect and improve human health and prevent diseases. There are too many ways to keep fit, including medical treatment, diet, exercise, massage, psychology and so on. According to medical categories, it can be divided into: Chinese medicine health care and western medicine health care. If divided by gender, it can be divided into: male health care and female health care. According to age, it can be divided into: health care for the elderly, health care for adults, health care for children and health care for infants. According to the crowd, it can be divided into: health care for pregnant women, health care for athletes, health care for miners, health care for textile workers, health care for construction workers and so on. I hope my answer can help you.