Why is the high temperature weather forecast lower than the somatosensory temperature?

Because the human body is converting food energy (internal energy) into physical energy at any time, it needs the human epidermis to exchange heat with the outside world constantly to maintain normal body temperature and normal physical temperature environment. When exchanging heat with the outside world, there needs to be a temperature difference. At the same time, the speed at which food heat is converted into physical fitness, the temperature difference that needs to be exchanged is generally between 10 and 15 degrees. If the temperature difference below 10 degree is too large, for example, the temperature reaches 30 degrees, and the temperature difference is only 6 or 7 degrees, which is far less than the temperature difference exchanged between the normal body and the outside world, a large amount of food heat will attach to the epidermis and exceed the physiological body temperature. That is, the high temperature is based on the exchange temperature, so the high temperature weather forecast is lower than the somatosensory temperature.