Vasovagal syncope is the most common cause of fainting. It’s typically caused by triggers, like the sight of blood or an intense emotion like fear or fright.

Medically reviewed by Mary Josephine Hessert, DO Vasovagal syncope is the most common type of fainting, a temporary loss of consciousness. It's a condition that happens when your blood pressure ...

Learn about vasovagal syncope, the most common cause of fainting affecting 40% of adults. Discover symptoms, triggers, and prevention tips from experts.

The vasovagal faint can occur in both healthy persons as well as those with health problems; it is not indicative of nervous system disease and should not typically initiate neurological studies.

Fainting may also happen when the part of the nervous system that regulates blood pressure and heart rate malfunctions in response to a trigger, such as emotional stress or pain. This type of ...

Evangeline Lilly revealed that she recently fainted while at the beach, falling face first into a boulder. The actress said she believes that her passing out often is due to her body “checking ...