What can cause fainting episodes?

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.

Can you die from fainting? The prognosis of a person who has fainted depends greatly on the underlying cause. In one study, 25% of people (average age 61 years) with a cardiac cause of syncope died within 1 year. Many of them died suddenly. Fainting that is not associated with cardiac or neurologic disease, however, presents no special risk.

What are the symptoms of fainting? Fainting Symptoms. There are a number of signs and symptoms when a healthy person is about to faint. People usually have a good idea beforehand that they are going to faint and when this happens they can let the people around them know. Symptoms of fainting include light headedness, dizziness, weakness and a blurred or spotty vision.

What causes almost blacking out? The two main reasons for blacking out are insufficient blood flow to the brain and abnormal electrical activity within the brain (a seizure). While both of these sound scary, in reality most episodes of blacking out are not related to life threatening health problems.

What are the signs of passing out? Passing out or syncope is a condition in which one loses consciousness for a brief period of time. This is caused by a lack of oxygen and blood flow to the brain necessary for the body to function properly. Symptoms that may be experienced before passing out include dizziness, lightheadedness, feeling clammy, fatigue,…