Posibleng Mga Sanhi para sa Vasovagal Syncope Malalang Hyperventilation Hyperventilation Orthostatic Hypotension Psychogenic Hyperventilation Disorder na Pagkabalisa Micturition Syncope Orthostatic Syncope Syncope Hypovolemia Malubhang Pagtitibi Carotid Sinus Syncope Kakulangan ng Tulog Di-mapigilang Pagdumi