When do I have to stop eating junk food ?

Each time I clean out my truck, I look at the various wrappers from food joints and wonder just how much longer I should be eating corn dogs, Del taco burritos, 7-11 taquitos and such.
I'm 48 and in decent shape. I have good endurance and feel younger than my years. NO blood pressure issues, non smoker, no drugs or booze. I work construction so I get daily exercise.....Still, I wonder.
Maybe I'm one of those guys that will live to 100 still eating Twinkies, Cheeze its and Whoppers from Burger King.

maybe you can and maybe you cant its all in your genetics the question is are you willing to take the chance.and you can have perfect blood preasure and still have heart trouble this I do know.