Why low blood pressure causes fainting
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Hypotension caused by fainting is mainly related to insufficient blood supply to the brain.
When hypotension is caused by a large amount of blood loss, diarrhea, vomiting or organic heart disease, it can cause the pressure in the blood vessels to decrease, leading to a decrease in blood circulation speed, further causing a decrease in blood volume in the peripheral circulation of cerebral arteries. With insufficient blood perfusion in the brain, brain tissue ischemia, hypoxia, dizziness, headache, fainting and other discomfort symptoms occur.
Hypotension patients usually need to strengthen nutrition, and enhance exercise, which helps to accelerate blood circulation, improve vascular regulation function, and has certain benefits for maintaining blood pressure levels.
