Injuries to any part of the body is bad.  But one of the worst injuries that could happen to a person is Brain Injury.  How could somebody  recover from a brain injury.  How could one be assured that for the following years to come, there would be no seen effects of damage to the brain.  Many causes of brain injury are vehicular accident, falling off from very high ground, physical assault by another person, and others.  I saw an accident several years ago and it involved a child.  Her head swelled up like a balloon and I could not recover from it.  I do not know what happened to her now.  I wish she is well and fine.