Often dismissed as stress or dehydration, fainting can be the heart's first warning sign. Cardiologists caution that ...

Medically reviewed by Mary Josephine Hessert, DO Common triggers for vasovagal syncope include extreme heat and dehydration.Fainting episodes occur most frequently in people younger than 40 years old.

You may have heard that people who feel faint should sit with their heads between their knees, but is that true? And how can you tell whether you or someone else who has fainted should go to the ...

Melbourne, Australia - Contrary to some previous reports, new research involving twins suggests that genes probably do play an important role in vasovagal syncope (VVS) [1]. The new study, which ...

You may have heard that people who feel faint should sit with their heads between their knees, but is that true? And how can you tell whether you or someone else who has fainted should go to the ...

Also known as the "common faint," vasovagal syncope (pronounced vay-zoh-Vay-gul Sing-kuh-pee) results from an abnormal circulatory reflex and could be caused by a number of factors: Environment: The ...

About 40 percent of us will faint at least once in our lives, and about 10 percent of those cases will wind up in the emergency room. However, some fainting patients may have underlying ...

Over one million Americans faint every year, and countless more do worldwide. Fear, pain, the sight of blood or prolonged standing – think the long lines of summer travel – can trigger fainting. These ...

Fainting or syncope can be thought of as a short-lived reduction in blood flow to the brain. The human brain relies on a constant supply of oxygen and nutrition carried in by blood. When this supply ...