I was watching America's Funniest Home Videos and they were showing people fainting at weddings and I was wanting to know why people faint. So can you tell me?
2007-06-08 04:43:42 · 7 answers · asked by Skinburn24 2 in Health ➔ Other - Health
Probably the most common cause if vasovagal syncope. (Syncope means fainting). Various deep emotional stimuli such as fright, sudden sorrow, etc, send stimuli from the brain via the vagus nerve. These stimuli can slow the heartbeat and decrease the tone in the thin muscle layer of the small arterioles, resulting in a sudden lowering of blood pressure and decreased blood supply to the brain, causing one to faint. The body's regulatory mechanisms, termed homeostasis, kick in to speed up the heart and increase the BP, so the affected person usually regains consciousness rapidly.
Another major cause of fainting is low blood sugar which reduces the energy source the brain needs to function. Again, homeostasis usually kicks in to increase the blood sugar, but this type of syncope can be more serious.
Blood flow to the brain is aided by keeping the person flat on his or her back, elevating the feet, and applying gentle pressure to the abdomen.
If the blood cannot deliver sugar and oxygen to the brain for more than a few minutes, yes, permanent damage may occur. Fortunately, most fainting episodes are not this serious, but may indicate some bodily malfunction, and the person should seriously consider seeking medical attention.
2007-06-08 05:05:54 · answer #1 · answered by greydoc6 7 · 0⤊ 0⤋
Pain or extreme stress can cause a vagal reaction which causes the blood pressure to drop. In brief episodes like on the videos, the only harm is if they fall on something harmful. The faint rarely lasts more than a few seconds. If it lasts longer than that, medical help would be needed.
2007-06-08 04:50:50 · answer #2 · answered by mommanuke 7 · 0⤊ 0⤋
people faint for all kinds of reasons. commonly at weddings its from being nervous and or anxious. i fainted from hitting my elbow so you never know. theres a lot of reasons.
2007-06-08 04:48:21 · answer #3 · answered by jami 2 · 0⤊ 0⤋
Jesus this is a crazy as hell world. I searched in my hard-drive(my brains) and for not even a single reason why would someone wanna faint intentionally...Do you wanna kill yourself.
2016-03-13 07:40:16 · answer #4 · answered by Anonymous · 0⤊ 0⤋
nervous thats the main reason
hurt?
yup of course when u fall face first thats the most painful part of fainting
2007-06-08 05:05:36 · answer #5 · answered by Syahmi@KiL889 2 · 0⤊ 1⤋
Sure, if you hit something on the way down. I suppose that could probably kill you.
2007-06-08 04:54:01 · answer #6 · answered by arkansaszippers 3 · 0⤊ 0⤋
due to acute hunger
weakness due to over exertion
more tensions
2007-06-08 04:53:37 · answer #7 · answered by Anonymous · 0⤊ 0⤋
it can damage ur brain and ppl fiant cuz they are scared or got hit in the head
2007-06-08 04:52:46 · answer #8 · answered by ILHN 2 · 0⤊ 1⤋