It is very hot in summer. People often eat popsicles and fan the wind with fans. Why?

(1) It's hot in summer, and people often eat popsicles. Because popsicles melt and absorb heat, people will feel cold when they eat popsicles.

(2) The fan will feel cool, because it accelerates the evaporation of sweat on the human body, and the evaporation absorbs heat and reduces the temperature of the human body, so people feel cool.

So the answer is: popsicles melt and absorb heat, so people will feel cold when they eat popsicles; Use a fan to speed up the evaporation of sweat on the human body, and the evaporation absorbs heat to reduce the temperature of the human body, so people feel cool.