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

It may sound strange, but some people actually faint when they poop. This isn’t a joke, it’s a real medical condition called vasovagal syncope. While it doesn’t happen to everyone, those who ...

Fainting at the sight of blood is common to many people and usually occurs without warning. Again, it is unrelated to fear or squeamishness; rather, it involves elaborate physiological mechanisms.

Unexplained fainting may signal heart problems, Dr. Richard Besser says Dec. 30, 2009— -- Showbiz star Marie Osmond famously fainted during an appearance on the ABC series "Dancing With the Stars ...

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 ...