Why do you feel dizzy under high temperature?

When the weather gets hot, blood pressure will drop. On the one hand, the weather becomes hot, sweating increases, and volatile water on the body surface increases, which plays a diuretic role, leading to the loss of a certain liquid capacity. On the other hand, the external temperature rises, the blood vessels on human body surface dilate, and the volume of blood vessel bed increases, which further aggravates the relative shortage of human body fluids.

Dizziness is a common brain dysfunction and one of the common clinical symptoms. Feel dizzy, bloated, top-heavy, trembling in the brain, dizziness, etc. Dizziness can be caused by many reasons, the most common ones are fever, hypertension, cerebral arteriosclerosis, craniocerebral trauma syndrome, neurosis and so on. In addition, it can also be seen in anemia, arrhythmia, heart failure, hypotension, drug poisoning, uremia, asthma and so on. Early depression often leads to dizziness. Dizziness can occur alone, but it is often accompanied by headache.