Drink less coffee in summer.

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First of all, when carrying out outdoor activities, you should take enough water with you to prevent dehydration. And avoid drinking caffeinated drinks, such as coffee and tea, as well as alcoholic beverages, so as not to accelerate water loss.

Secondly, try to wear light-colored, loose, sweat-absorbing clothes to reduce heat absorption, which is conducive to perspiration and heat dissipation. Fat people, patients (especially those suffering from heart disease or high blood pressure), the elderly and children should pay more attention to the broad-spectrum sunscreen with a sun protection factor of more than 15. Wear sunhats, sunglasses or umbrellas to avoid direct sunlight on the skin and eyes.

Finally, go out in the morning or evening as far as possible, avoid strenuous exercise, high temperature, sweating and fatigue will increase the body load, prone to accidents. After going out and coming back, you should first open the window for ventilation and use electric fans to keep the air cool and cool, which will help to recover.