If the clothes are worn too much and too thick, the blood vessels of the skin will expand, and the blood flowing to the skin will increase, thus increasing the heat dissipation, reducing the adaptability of the body to the temperature changes of the external environment, and making it easy to get sick.

Avoid licking your lips

In order to moisten lips, some people often like to lick chapped lips with their tongues. As a result, the more you lick, the drier you lick, and the more you crack. This is because saliva is used to moisten the mouth and digest food, which contains amylase and other substances. When it licks on the lips, it's like coating a layer of paste on the lips. When the wind blows, the water evaporates, and amylase sticks to the lips, making the lips drier and even causing chapped bleeding, causing infection and suppuration.