I had lunch with my 105 year old grandmother on the last full day of her life. She had been posting on a special centenarian message board she had found and we chatted away about my grandchildren. There was nothing at all to indicate any kind of problem and she said she felt fine. She expressed some concern about my health, but not her own, and told me for about the thousandth time to quit smoking. She passed peacefully in her sleep that night.
I have quit smoking, btw.