Can you lose consciousness while sleeping

How is vasovagal syncope diagnosed? Your doctor will review your medical history and do a physical exam. This will probably include measuring the blood pressure while lying down, seated, and then standing. Syncope is a temporary loss of consciousness usually related to insufficient blood flow to the brain. Vasovagal syncope is the most common type of syncope. It is caused by a sudden drop in blood pressure, which causes a drop in blood flow to the brain.

When you stand up, gravity causes blood to settle in the lower part of your body, below your diaphragm. Our data suggest that in some individuals with chronic hypertension periodic fluctuations in blood pressure that result in sudden drops from hyper- to normotensive levels may be a cause of recurrent syncope.

Vasovagal syncope is usually harmless and requires no treatment. Your doctor may recommend tests to rule out more-serious causes of fainting, such as heart disorders. Legal restrictions on the ability to drive for patients with a predilection to syncope vary significantly among jurisdictions, but most prohibit driving for months. The risk of syncope while driving among patients with frequent episodes of vasovagal syncope appears to be very low in this study. Syncopal episodes are typically triggered by a sudden, temporary drop in blood flow to the brain, which leads to loss of consciousness and muscle control.

The person then falls down or over, which allows blood flow to return to the brain. Returning blood flow allows the person to regain consciousness. Begin typing your search term above and press enter to search. Press ESC to cancel. Skip to content Home Philosophy Can you lose consciousness while sleeping? Especially in non-rapid eye movement sleep, conscious experience, sometimes dreamful, sometimes dreamless, also alternates with a loss of consciousness. Read also What does God say about an eye for an eye?

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