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Why Do We Faint?

November 01,2017

All of us, at some point in our life might have fainted. I had an episode of fainting very recently which got me to learn & understand why exactly this happens to us. Fainting is most commonly caused by a temporary glitch in the autonomic nervous system. The autonomic nervous system regulates automatic bodily functions, such as heart rate and blood pressure. An external trigger can temporarily cause the autonomic nervous system to stop working properly, resulting in a fall in blood pressure and fainting. The trigger may be:

• An Unpleasant Sight

• Heat

• Sudden Pain

• Coughing

• Sneezing

• Laughing

• Sitting or Standing Up Suddenly

The most common reasons why one faints is due to

1. Low Blood Pressure

2. Dehydration

3. Diabetes

4. Neurological Conditions