No one knows why--some do some don't....
It is a disease that affects the thought process maybe thats why
seems the craving is that strong for some
It is an Addiction/Disease--so even if they know what they need to do the addiction holds them back
We all know alcoholics---would you trust them with anything important--to make any desicions for you?
I wouldn't....
Many do seek help-why don't they make it?
as I said before many unanswered questions--no denial--just uncontrolable craving?
There are many brittle diabetics who can go into comas -have kidney failure and die if they don't follow their diets etc---why do so many of them fail?Not follow diets--lose a leg because of it etc...still noncompliant?
Not all people follow advice given to them even though they know it could kill them.
Even worse for a drug/alcohol/addict-because there is no clear thinking there....