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Syncope is an involuntary body response that causes fainting. During syncope, the heart rate slows and the blood vessels dilate, which means less blood gets to the brain. A child who is about to faint may feel:
Syncope can be caused by a variety of situations, such as:
Treatments include avoiding situations that may cause a vasovagal response, such as scary or stressful events. Other treatments include treating any underlying conditions that may cause syncope, such as repairing a heart defect.