It is very cold in winter. What are the disadvantages of not washing feet before going to bed at night?

Your feet are often cold in winter. If you soak in hot water before going to bed, it will be very warm, promote blood circulation in your feet and be good for your health. If you don't want to wash your feet because of the cold, your feet won't be warm all night when your body is almost sick. Therefore, it is recommended to bubble before going to bed, and your body will be fine. . . Thank you. .