smoking and alcohol are the top proven reducers of life expectancy.
he should quit smoking 20 years ago, and he should quit now when he recover. smoking do kill people!
I used to drink occationally. now, I just completely quit drinking.
I also quit drinking teas because almost all the teas have pesticides.
I just drink coffee nowaday. and even some coke doesn't hurt as long as I exercise.
Just think about how much money you will make from your stock portfolio for each extra year you extend your life during the last 10 years of your life..

It's probably 10x more what the current portfolio are making per year now. that make me to want to exercise and live longer. It's the best value investing.