geauxtohell
Choose your weapon.
There's no guarantee that anyone will live to 80 or 90. It sounds corny but you gotta' live life to the fullest now.
My Uncle was an A-Hole, abused himself with alcohol and lived to age 80. My Aunt never smoked or drank, went to church and was the nicest person you ever met. She died from lung cancer at age 53.
You gotta' do what you want and live like you want, right now.
There is an adage among Medical Students: "If you are going to the hospital, kick a cat or do something wretched on the way."
The underlying notion being that, for some reason, the bastards always seem to live forever and the patients you love always seem to befall some horrible malady during the course of their hospitalization.