Fainting or blacking out, also known as syncope, is a temporary loss of consciousness due to insufficient blood flow to the brain. Dreamstime/TNS You may have heard that people who feel faint should ...

When the heart beats too fast or too slow, blood pressure can drop suddenly, reducing blood flow to the brain and causing a ...

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 ...

While fainting is often linked to stress, dehydration or prolonged standing, some episodes may be caused by cardiac syncope, a serious condition resulting from a sudden drop in blood flow from the ...

LONDON — 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 ...