What is a sauna? What are the main types

Q1: What is a sauna? What are the main types?A1: Sauna, also known as Finnish bath, is a leisure and health care method that conducts physical therapy on the human body through a high-temperature environment in an enclosed space. Originating in Finland, it has a history of more than 2,000 years. Its core is to stimulate blood circulation and expel waste from the body through high temperature, so as to relax the body and mind and regulate the body. There are mainly 4 common types: dry sauna, wet sauna, ice sauna and light wave sauna; according to the heating principle, it can be divided into steam sauna, far-infrared sauna and tourmaline sweat steaming. Among them, dry sauna (generating dry heat by heating sauna stones) and wet sauna (generating moist heat by steam) are the two most popular types.Q2: What preparations do I need to make in advance for the first time using a sauna?A2: Beginners need to make 3 core preparations for using a sauna: ① Drink 300-500ml of warm water (which can contain a small amount of glucose) 30 minutes in advance to supplement blood volume and avoid dehydration during the sauna; ② Take a thorough shower to clean the skin, wash off oil and cosmetics residues to avoid blocking sweat glands, and dry the body after the shower to prevent water droplets from delaying sweating and affecting the experience; ③ Remove metal accessories such as jewelry and watches (high temperature will make the metal hot and easy to burn the skin), and those who wear glasses need to take them off and store them in advance to avoid high temperature damaging the lens coating.Q3: What is the general temperature inside a sauna room? What temperature is suitable for beginners?A3: The temperature varies with different types of saunas: the temperature of a dry sauna is usually 70-85℃, the temperature of a wet sauna is 40-60℃, and the temperature of a far-infrared sauna is relatively mild, generally 45-55℃. Beginners are advised to start with a mild temperature: choose 65-70℃ for dry sauna and 40-45℃ for wet sauna first. After the body adapts, gradually increase the temperature to avoid discomfort caused by contact with excessively high temperature at the beginning.Q4: How long is the appropriate time to control for the first sauna session?A4: It is recommended that beginners control the duration of a single sauna session to 8-12 minutes, which should not be too long. If you experience dizziness, palpitations, dry mouth or other discomfort during the process, you need to leave the sauna room immediately, rest in a well-ventilated place and supplement warm water. It is recommended that beginners start with 5-8 minutes per session, 1-2 times a week. After the body adapts, gradually extend the duration to 10-15 minutes per session, no more than 3 times a week.Q5: Can I use my mobile phone, eat or drink water while using a sauna?A5: It is not recommended. ① The high temperature and high humidity inside the sauna room will accelerate the aging and damage of the components of mobile phones and other electronic products if they are in this environment for a long time; ② When using a sauna, the body's blood is concentrated on the body surface, and the blood supply to the digestive system is insufficient. Eating will increase the burden on the stomach and intestines, which is easy to cause bloating, nausea and other discomfort; ③ You can drink a small amount of water, but you need to sip it slowly, choose warm water or mineral water, avoid drinking a lot at once, and do not drink ice water, carbonated drinks or alcoholic beverages, so as not to stimulate blood vessels and the stomach and intestines.