What Causes Fainting While Fasting?

Posted on Thu, 27 Aug 2015

Question: I was fasting and on the 10th day, after I had got into bed, I rolled over, and suddenly felt as though I was falling. I think I might have inflicted a tiny injury on myself. On a fast you can esperience low blood pressure and so faint, but this is the first time I've done so in bed. Do people often faint in bed?

Answered by Dr. Ilir Sharka (47 minutes later)

Brief Answer:
Fasting may occur in many several situations.

Detailed Answer:
Hello!

Thank you for asking on HCM!

I would like to explain that fainting may happen when cerebral metabolism lacks of transient sufficient blood supply, oxygen, or the necessary nutrients.

During fasting, several components are met to consequently lead to fainting. High blood pressure gives place to subsequent hypotension and dehydration, nutrient components are lacking (especially glucose, which is the only one preferred fuel for the brain). As a consequence, cerebral drive is abnormally decreased.

That’s why you have experienced such an unpleasant clinical scenario.

I recommend you to follow a healthy life-style and diet, and try to accomplish all the necessary physiological needs (especially sleeping and healthy foods, etc).

Hope to have been helpful to you!

Feel free to ask me whenever you need! Greetings! Dr. Iliri

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Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar