Fainting by Reflex or Neurocardiogenic Syncope
Reflex syncope, also known as neurocardiogenic syncope or neurally mediated syncope, is the most common form of syncope. It happens when the never that regulates heartbeats or blood pressure is triggered by a sensational event, nausea, headache or stress. When heartbeat slows or blood pressure drops, blood circulation to the brain is reduced, causing the loss of consciousness.