Conversation: The conversation between human and AI assistant.
[|Human|] My daughter had a bloody nose and after cleaning her up she got light headed and fainted. While she fainted her body started shaking like she was having a seizure. I blew slowing on her face while this was happening and she was only out for less then a minute, but what causes the body to shake like ths?
[|AI|]  Hello, Unfortunately for physicians "shaking" is a very vague term, and it could mean many kinds of movements, ranging from tremulousness of the body, to flailing, to arrhythmic shaking to rhythmic shaking and all have very different implications. However, I will give you the most common cause of what you saw. Most likely what occurred is called "convulsive syncope" which means that when you pass out you have some jerking movements, but it is not considered a seizure. What happens is that blood flow is disrupted to the brain and the person loses consciousness. Because the nerve cells are suddenly deprived of oxygen, they fire abnormally for a few times causing body jerking, but when the person collapses blood flow is restored and the movements stop. So essentially the movements are caused by passing out and not by a seizure. Likely what happened also was what we call a "vasovagal reaction" in which due to stress, emotional response among other things, the blood vessels dilate and blood rushed down from the head into the legs causing a person to pass out. The classic example of this is when a person who is getting their blood Chat Doctor.  It is not considered abnormal, and can happen to anybody. Lastly, just to describe what a true seizure looks like. Typically, what happens is that a person will first stiffen up, the eyes will turn up into the head with the eyes remaining open. There is often a very loud scream due to the abdominal muscles tensing up and expelling air from the lungs. The stiffening phase is then followed by a rhythmic, whole body shaking. When I say rhythmic I mean that the jerks occur at regular intervals and at the same time in all extremities of the body. The gradually slow down and the person becomes limp and often is breathing very hard. When they wake up there is almost always confusion that lasts several minutes and then slowly the person returns to their normal state of mind. Hope I have answered your query. Let me know if I can assist you further.