How is a headache in hot weather?

1 blood volume reduces headache. The temperature is high in summer. When the weather is hot, the human body sweats a lot in order to cool down. At this time, if water is not replenished in time, the blood volume of the human body will be reduced, and the blood supply to the brain will be insufficient, which is prone to headaches.

2 lowering blood pressure and headache when the weather is hot, the human body will sweat a lot and dissipate heat. When sweating, the blood vessels on the body surface will expand and the blood will be diverted from the inside out. The redistribution of blood will make people with low blood pressure lower, which will cause headaches. It is medically called intracranial pressure or hypotensive headache.

3 hypoglycemia headache In summer, people often have headaches because of poor sleep, weak spleen and poor appetite. The cause of this headache is malnutrition and hypoglycemia, which leads to the lack of necessary energy in the brain and produces headaches.

4 eating cold drinks has a headache. In summer, when people drink cold drinks, because of the burning mouth and mucous membrane, they can't stand the sudden stimulation, which causes submucosal vasospasm, and at the same time, it is also short-lived to reflexively cause cerebrovascular spasm, but it will make the brain can't stand this sudden blood loss, and can't respond quickly to stress, which makes people have a headache.