Why do you feel tired when the weather is hot?

Sweating a lot will lose some body heat, but it is necessary.

Heaven and man correspond, and in hot summer, the internal environment of human body must adapt to the external environment. When the temperature is higher than the optimal value suitable for human body, the viscera and organs will work at high load, adjust the balance of qi and blood in human viscera, so as to relieve the pressure caused by temperature, and at the same time, the metabolism will be accelerated, the excess heat will be naturally discharged through sweat pores, and the number of urination will increase. Because human organs are in a high-load working state for a long time, people will feel inexplicable fatigue and laziness. In summer, the five elements belong to fire and are in an open state. If the human body releases too much qi and blood, it will be lax and weak, so it will feel very tired, like doing heavy work.

It is said that people who live in hot areas for a long time have a shorter life span, while those who live in cold areas have a longer life span because of their slow metabolism.