When it is hot and sweaty in summer, you will feel cold. What happened?

The reason is simple: when people are hot, the pores will secrete sweat, which can lower the temperature of the human body and reach normal body temperature. This is a normal physiological phenomenon.

Under certain circumstances, if it is hot but you don't sweat, it will lead to heatstroke.

You are a normal physiological phenomenon. If you feel fat, you can exercise more, sweat more and burn less fat to lose weight.