Fainting: A Twin Thing? University of Melbourne Study
8/7/2012 7:43:24 AM
You feel weak, and dizzy. Then, all of a sudden you go weak in the knees and fall, completely blacking out. That’s what it feels like to faint. Now, researchers are linking the black out to genetics! Fainting, also called vasovagal syncope, is a brief loss of consciousness when your body reacts to certain triggers, such as emotional distress or the sight of blood.