Eat more peaches and wax gourd in summer, and eat some watermelons, tomatoes and cucumbers in moderation. The summer climate is humid and sultry, and the diet should be bitter, spicy and sour. Bitter taste can clear away heat and purge fire, strengthen temper and eliminate dampness, such as bitter gourd, lettuce and asparagus. , and has the effect of clearing the heart, relieving annoyance and refreshing the brain.