Generally speaking, there are many kinds, which can be divided into two major systems: China and the West.

1, Chinese, introduction to ancient times, martial arts and qigong, etc.

2, the west, physical exercise, some aerobics and so on, as well as yoga, walking, jogging and so on. ...

Generally speaking, we should choose mild ones, not high-load ones, so as not to hurt our health. In addition, you should find a professional teacher or related person to guide and supervise your exercise so as not to hurt your health.