Syncope, commonly known as
fainting, refers to a sudden loss of consciousness, followed by a rapid
and complete recovery. There are various causes of syncope, the most common being vasovagal, when your body overreacts to certain triggers (e.g., fear of injury, heat exposure, sight of blood, and/or extreme pain), causing your heart rate and blood pressure to drop, causing decreased blood flow to your brain. In most cases of vasovagal syncope, you have some warning that you are near fainting (e.g.