1, get enough sleep. Arrange the rest time reasonably, ensure enough sleep to maintain sufficient physical strength, and achieve the purpose of heatstroke prevention and cooling.

2. A scientific and reasonable diet. Eat more vegetables, fruits and proper animal protein and fat to supplement physical exertion. Never go on a diet.

3. Take sun protection measures. Outdoor activities should avoid direct sunlight on the head and direct absorption of radiant heat by the skin. Wear a hat and loose clothes.

4. Drink water reasonably. Drink 3 liters to 6 liters per day, preferably containing 0.3%-0.5% sodium chloride. Avoid drinking plenty of water before and after meals and before and after strenuous exercise.