It depends.. If it's a really bad hit on the head then it might last up too days or weeks!!
If the injury is not that big then sometimes the concussion will only last for a couple of hours, or if your lucky seconds!!!!
If you faint you can get a really bad concussion, if the person hits there head badly but, not always.
But not only fainting cause a concussion, any time you hit your head on anything really bad, or sometimes when you are stressed.
Injuries can last anywhere from a day to years. It all depends on the injury and how and it is.
Post concussion headaches can occur minutes to years after an injury.
it depends on the injury.
depends on how deep the cut is.
A bad head injury could cause long term mental illness, due to brain damage.
About 3-5 days
After my head injury I have cold sensations internally
It depends on the injury/ reason to have a cone on in the first place.
Head gaskets are supposed to last the life of the engine. There is no "care" specific to head gaskets.
I think until you treat it.
Most injuries and deaths during tornadoes are caused by flying or falling debris. You should cover your head to reduce the risk of head injury. An injury to the skull or brain will likely have worse long-term effects than an injury to the arms or hands.
there are meny diferint tipes of head injures. the most comon head injury is a cuncushon.