What should I do if the weather is hot and dizzy?

Because when the weather is hot, the body temperature will rise, the blood vessels will expand, so that the blood circulation of the whole body will be accelerated, and the blood flow in the head will be rapid. If the body can't adapt, it will be dizzy. Generally speaking, this problem is not big. People with anemia have poor resistance, people with weak constitution will be more prone to dizziness, and people with strong constitution will feel better.