Core Viewpoint - The article emphasizes the health risks associated with prolonged exposure to high-temperature environments such as hot springs and saunas during winter, highlighting the importance of proper temperature control and time management to avoid heat-related illnesses. Group 1: Health Risks and Recommendations - Prolonged stays in hot springs can lead to heat stroke, with symptoms including dizziness, fatigue, and even fainting, as diagnosed by medical professionals [1] - Recommended water temperature for hot springs should be between 38-40 degrees Celsius, with single soaking sessions limited to 10-15 minutes [1] - It is advised to slow down when getting out of the water to prevent dizziness or falls, and to stay hydrated while avoiding alcohol and smoking in the hot spring area [1] Group 2: Skin Care and Precautions - Winter bathing in hot water requires attention to skin protection to avoid damaging the skin barrier, with recommendations to avoid high water temperatures and prolonged exposure [2] - After bathing, it is suggested to apply moisturizer while the skin is still slightly damp, using products containing ceramides, squalane, and hyaluronic acid [2] - Individuals with sensitive skin or inflammatory skin conditions should be cautious, as high temperatures may exacerbate skin damage [2] Group 3: General Bathing Guidelines - The principle of "moderation, timing, and suitability" should be followed for effective bathing, with recommendations to avoid cold drafts and water immediately after bathing [2] - Bathing is not advisable after meals, when hungry, fatigued, or after consuming alcohol, particularly for vulnerable populations such as the elderly, infants, pregnant women, and those with diabetes or cardiovascular diseases [2] - After bathing, it is beneficial to sit for a moment and drink warm ginger red date tea or lightly salted water to replenish fluids [2]