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

Add Yahoo as a preferred source to see more of our stories on Google. Where is a fainting couch when you need one? Michael C. Gray/From www.shutterstock.com Over one million Americans faint every year ...

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.

Picture this: you’re standing in line at the grocery store when suddenly you feel dizzy, nauseous, and before you know it, you’re waking up on the floor with concerned strangers hovering over you. If ...

Fainting represents one of the body’s most dramatic protective mechanisms – a sudden, temporary loss of consciousness that looks alarming but often serves a vital purpose. This phenomenon, medically ...

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 ...