Soaking feet for health is a good habit developed in universities. When I was in college, the conditions were not very good because the suburbs were very cold. My roommates and I used to soak our feet for half an hour every night, and then we went to bed, feeling warm. We persisted for several years. Later, after graduating from college, I couldn't soak my feet often, but I found that I seldom caught a cold. There is a saying that winter disease is cured in summer. I think soaking feet also has this effect, so later. I found that my body's immunity is good in all aspects, including sleep quality. However, there are two points to note. One is sometimes you can't soak your feet, such as holidays. In addition, the time is best not to exceed 12, and it is best to soak for half an hour before going to bed.