Officially on July 11, the three-volt day usually occurs between the light heat and the summer, and is the hottest time of the year when it is humid and muggy.
Three volt days health taboos: (1) Avoid eating cold drinks; (2) Avoid ventilation without opening windows; (3) Avoid direct blowing of cold wind; (4) Avoid eating only fruits and vegetables; (5) Avoid sweating; (6) Avoid excessive exercise... (People's Daily Reporter Yan Yan)
Source: People's Network