Why Does High Blood Pressure Cause Dizziness Or Fainting?

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Definition

Fainting is a temporary loss of consciousness due to a drop in blood flow to the brain. The episode is brief (lasting less than a couple of minutes) and is followed by rapid and complete recovery. You may feel light-headed or dizzy before fainting.

A longer, deeper state of unconsciousness is often called a coma.


Alternative Names

Passed out; Light-headedness - fainting; Syncope; Vasovagal episode


Considerations

When you faint, you not only experience loss of consciousness, but also loss...

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