In southeastern Hunan, there is a custom of eating ginger in summer. "Eating radish in winter and ginger in summer doesn't require a doctor to prescribe."

Although it is hot in summer, the yang is in the exterior and the yin is in the stomach, but the internal organs are cold and easy to have diarrhea, so eat ginger that warms the stomach. Ginger has the effects of appetizing, dispelling wind and dispelling cold. People's stomach qi needs to rise in the morning, so eating ginger can strengthen the spleen and warm the stomach.

Before and after the heat, the weather is often hot and humid, and people feel uncomfortable. Therefore, heat preservation should first avoid overwork in sultry weather, go out as little as possible and have less activities. In order to let the water out of the body, try to do moderate "slow" exercise such as walking in the morning and evening when the temperature is low.