Disease analysis: soaking feet in winter is warm and burning! Feet are the second heart of people! Insist on soaking in hot water properly before going to bed, stimulate the acupoints of feet for a long time, promote the smoothness of qi and blood, indirectly regulate the function of viscera and enhance physical fitness. Especially for people with poor sleep and cold hands and feet, this health care method is simpler and more effective. It's not just winter that needs soaking feet. It's nice to soak your feet all year round! Suggestion: Middle-aged and elderly people can use Artemisia argyi and Cinnamomum cassia twig with a little salt.