Vasovagal syncope occurs when the nervous system sends inappropriate signals through the body. Nerves help regulate blood pressure by constricting or dilating the vessels. Typically, the brain receives enough blood from this process, but when the nerves do not deliver the right signals, blood vessels dilate and the heart can slow down. Blood then pools in the legs, causing blood pressure to drop. The brain gets too little blood, and this results in a loss of consciousness.
This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other healthcare professional.