A cold current is coming, freezing to death! But do you know a way to make you not afraid of cold in the future? I took a hot and cold bath without a down jacket! Hot and cold bath is a cold-resistant method, which can accelerate blood circulation, enhance immunity, accelerate self-healing ability, prevent colds, strengthen metabolism and delay aging. Oh, my God! So powerful, come and see what is going on! At first, just like the way you usually take a shower. After the first step, take a bath with hot water for three minutes. Step 2: shower immediately with the coldest cold water for 30 seconds. Remember to take a deep breath before taking a shower, and then spray slowly. Step 3: repeatedly shower with hot water for three minutes, and then shower with the coldest cold water for thirty seconds. Go back and forth three times like this. Step 4: Rinse with cold water for 30 seconds for the last time. It's done.