Can fainting damage your brain
1 more posts from the askdoctorsmeeee community 134 posted byIn addition, many brain injury patients experience heightened anxiety and restlessness when taking gabapentin.The muscles lose their tone and the body collapses where gravity pulls it.How afib can lead to fainting.Damage may be irreversible at this time but the brainstem is more resistant, hence the occurrence of persistent vegetative state.
Fear, rather than a physical problem, usually causes it, though you can bring it on if you hold your breath.During afib, the atrioventricular node is overwhelmed by all the irregular electrical impulses in the heart, causing your heartbeat to become rapid and irregular, and that malfunction prevents your heart from efficiently pumping the blood out to the body.The person usually recovers quickly with no lasting effects.Feeling faint isn't dangerous of course, when people hear that their brain isn't getting enough blood, they get worried.Headache begins as a dull ache and quickly develops into throbbing pain.
Thirty percent of patients in the northwestern study reported dizziness.When your brain doesn't feel like it's getting enough blood to your brain, it responds by dropping you to the floor, because the easiest way to make sure blood flow reaches your brain is when you're on the the ground.While fainting carries the risk of hitting your head, evolution has judged a potential knock to be less.It usually happens when there is a slight decrease in the amount of oxygen reaching the brain.Overheating dehydration heavy sweating exhaustion the pooling of blood into the legs
Serious causes fainting usually is caused by a temporary drop in blood pressure.American red cross fainting usually is not harmful.It can be benign or a symptom of an underlying medical condition.Though it's unclear why, this makes blood vessels around your brain shrink, which limits oxygen and makes you lightheaded and possibly faint.This is called orthostatic tachycardia, which is caused by a sharp rise in heart rate when you stand.
