Fainting Occurs Because Blood Pressure Drops Suddenly

Fainting or syncope is a temporary loss of consciousness associated with a lack of blood flow to the brain. Generally, fainting occurs because blood pressure drops suddenly so that blood flow and oxygen supply to the brain is reduced. A number of conditions that can trigger fainting are stress, fear, overheated weather, electric shock (stunts), and sudden changes in position. Fainting can occur when a person sits, stands, or gets up too quickly. People who experience this condition tend not to feel any symptoms before losing consciousness. So, there is no such thing as fainting during sleep. This very hungry condition experienced by a person can make fainting. The reason is the body lacks fuel for the brain. A person who faints usually will not feel anything to light stimuli such as tickling, touch, or the like. There is a resemblance to a stupor with a coma. People in a coma will not move, make sounds, let alone open their eyes, even if they are pinched. In contrast to fainting, which only occurs temporarily, coma sufferers experience loss of consciousness for a long time. Coma occurs due to damage to one part of the brain, either temporarily or permanently.