Many people have the habit of exercising in the morning, such as going outdoors for a morning run. Middle-aged and elderly people are also used to playing Tai Ji Chuan in the park or by the river in the morning for healthy exercise. However, since the outbreak of novel coronavirus, in order to prevent the spread of the virus, the state has advised everyone to go out as little as possible, and many people who have the habit of doing morning exercises are very uncomfortable. Going out during the epidemic will definitely increase the risk of infection in COVID-19. Therefore, if you can exercise at home, it is suggested that you exercise at home as much as possible, such as Tai Ji Chuan, yoga, skipping and square dance, which can be done at home, and you don't have to go out to do it.