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YouTubeDr. Petcha
What Actually Happens When You Faint (Cardiologist)
What actually happens inside your body when someone faints? I'm Dr. Peter Chang, a cardiologist in Singapore. Most fainting is called vasovagal syncope. Here's the mechanism: - The vagus nerve fires too strongly - Heart rate drops - Blood vessels widen - Blood pressure falls - The brain briefly loses blood flow - You lose consciousness - Lying ...
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