The weather temperature is 36 degrees and the human body temperature is 36 degrees. Why do people feel hot?

The human body is a warm-blooded animal, but the temperature of 37 degrees is the temperature inside the human body, just like taking a temperature, you must put a thermometer under your arm, in your mouth and in your anus. The skin of human body is a huge radiator, which can keep the surface temperature of human body at about 25 degrees, so when the outside temperature is lower than 25 degrees, people will feel cool. At 25 degrees, people feel neither cold nor hot, which is called insensitivity to temperature. When it exceeds 25 degrees, people will think that the weather of 25 degrees is most suitable for people's body temperature.