I want an English essay about the doctor's advice on how to keep patients healthy.

Health is the guarantee of one's happiness. Without a healthy body, a person can't do what he wants to do, let alone achieve his life goals.

There are three ways to stay healthy. First, he pays attention to hygiene. Stay away from viruses, which means that one should wash hands, take a bath frequently and eat properly. Stay away from bad living habits, such as smoking, overwork and other behaviors that seriously damage body organs. Secondly, one is regular exercise. He may go jogging, swimming, cycling, playing basketball and so on. Exercise will improve a person's disease resistance. Last but not least, he should be optimistic, not afraid of difficulties and obstacles, and always be in high spirits.

Only when we are healthy and full of energy can we meet the future full of competition and challenges and strive to realize our ambitions.