I had such an experience in August last year. Got up at 4am to have a leak and tripped at top of stairs, flew down into a brick wall. When my wife discovered me, I was lying in a pool of blood with blood bubbles coming out of my nose. After my wife dialled 999, I was taken by helicopter to the Royal London Hospital which is the designated centre for brain injury in my area. After 3 weeks in a coma (two of them due to the incredibly powerful drugs I was given) and a further six weeks in intensive care, I was allowed home just before my 69th birthday last November. I'm a very very lucky man to be still here and the doctors told me I was as near to death as you can be without being dead! It's like being given a second chance that you feel you maybe don't deserve and it has certainly made me even more appreciative of my wonderful wife and two children, one of whom has produced my first two grandchildren (twins) who were born on Melbourne, Oz but are now back in the UK.