Fainting (Syncope)


Anemia (low red blood cell count), whether it occurs acutely from bleeding or gradually for a variety of reasons, can cause fainting because there aren't enough red blood cells to deliver oxygen to the brain.


Dehydration, or lack of water in the body can similarly cause fainting or syncope. This can be caused by excessive loss of water from vomiting, diarrhea,sweating, or by inadequate fluid intake. Some illnesses like diabetes can cause dehydration by excess loss of water in the urine. Continue Reading

Reviewed on 2/3/2015
Balance Disorders Pictures Slideshow: Vertigo, Migraines, Motion Sickness and More


Get the Latest health and medical information delivered direct to your inbox!