Originally Posted by
Hawkeye13 
Unfortunately, his "addiction" will result in a greatly diminished lifestyle for you
in the end.
Someone who makes a conscious decision to not take minimal care of their own
health is, by default, going to dump their care issues on you down the road.
....
It's a tough call alterity
Very tough call especially when the issue is not so cut and dry.
Take myself for example... I was, for many years, an average eater, did not drink alcohol for a decade, did not smoke, was an average weight, but developed atherosclerosis. Early plaque was developing in my carotid artery, just as it had in my mother. I have a genetic mutation that predisposes me to hypercoaguability. I am sure that I inherited this SNP (single nucleotide polypmorphism) from my mom.
If I had not been diagnosed (this was in 2011), I would likely have continued down the same path until I died at an early age (menopause, so around age 47, the age my mother died of massive stroke due to blood clot dislodging from her carotid artery).
So, take that situation and compare it to my father who smokes, drinks like a fish, eats a diet very similar to my husband, and just turned 70 without having any major health symptoms.
No easy answer exists.