Soaking feet with white vinegar can promote blood circulation. The biggest advantage of soaking feet is to promote blood circulation. For example, cold hands and feet in winter are caused by blood blockage. Soaking feet with vinegar can accelerate human blood circulation and improve hypoxia caused by long-term inactivity. Especially for the weak or the elderly, soaking feet is really good. Soaking feet with vinegar can really improve beriberi. Berberis is mainly caused by fungal infection, and vinegar has bactericidal effect. At this time, it can inhibit fungal reinfection, control fungi and improve beriberi.