Genetics suck.....
I was in extremely fit condition when I was in the units......had a high cholesterol and had to go on medication even though I was watching what I ate all the time.....
Now have high blood pressure, found out my dad had high blood pressure and most of my siblings have it too..
I don't work out and train anywhere near what I use to but I still train and work out and am careful (kind of) with my diet
I know other people who haven't been to a doctor in a decade or more, smoke, drink and smoke dope almost every day...they'll probably live until they are 100.......