The problem is that with elderly people stress is a killer. My 89 year-old mother fell over in her back-yard and could not get up. She dragged herself into the shade of a tree, then she was too cold. Her grand-daughter came home 6 hours later, found the back door open but did not look for my mother. Later that evening her grand-daughter's husband went for a smoke and found my mother lying under the tree in the backyard. My mother ended up in hospital where they found antibodies in he blood which indicated heart stress. She got golden staph on her fingers while in hospital and it got into her bowel. She died in palliative care after refusing an operation which would almost have certainly killed her.