What happens when you faint?
A drop in blood flow to the brain causes fainting.
The most common causes of fainting are usually not signs of a more serious illness.
In these cases, you faint because of: The vasovagal reflex, which causes the heart rate to slow and the blood vessels to widen, or dilate.
Do you stop breathing when you faint?
A person may be unconscious for a few seconds — as in fainting — or for longer periods of time. They may even stop breathing or their pulse may become faint.
Can stress cause blackouts?
A psychogenic blackout can be difficult to diagnose. Most often it occurs in young adults as a result of stress or anxiety. However, the link between blackouts and stress may not be obvious. Psychogenic blackouts sometimes develop after people have experienced ill treatment or trauma.
Should you go to the hospital if you faint?
However, if you have serious health problems, you probably should see your doctor. This is especially important if you have heart-related problems, high blood pressure, or diabetes. See your doctor if you faint and also have any of these symptoms or conditions: irregular heartbeat.