In summer, because of the high temperature and humidity, the requirements for physical fitness are higher. Therefore, we can travel to the mountains for summer vacation, swim and fish, and the elderly can also play fitness balls.

But we should pay attention to: First, eat more alkaline foods to prevent acid-base imbalance. Alkaline foods are mainly fruits, and watermelons, pineapples, apricots, plums and cantaloupes in fruits are rich in potassium salts.

Secondly, it is best to do outdoor sports in the early morning or evening when the weather is cool. Get up in the morning and go to parks, lakes, courtyards and other places with fresh air. These events include broadcast gymnastics, Qigong and Tai Ji Chuan.

Third, exercise moderately and don't be overtired. You can drink some salty boiled water properly, and it is best to take a hot bath, which can not only eliminate fatigue, but also make people feel particularly comfortable.