Soaking in hot water can relax muscles. According to the health book, washing your body alternately with hot and cold water can relax your shoulders, that is, minimize the hardness of your shoulders and eliminate tension. But I don't recommend the landlord to adopt this method (alternating hot and cold is easy to catch a cold); It's no problem to soak in hot water, but the problem lies in psychological quality. Don't worry too much, the more you worry, the easier it is to have an accident. Be yourself and good luck!