No, Mr. Zhou, the teacher of health cause and effect, brainwashed the elderly by giving health lectures. They will make these elderly people deeply rooted in their products through publicity, so as to sell their products later. Health means that a person is in a good physical, mental and social state. Health includes two aspects: first, the main organs are disease-free, the body shape develops well and evenly, the physiological functions of various human systems are good, and there is strong physical activity and labor ability, which is the most basic requirement of health.