I'm ptetty young, 13, but I have found out that three of my great-grandparent and my grandpa have all died of a heart attack. My (dead) grandpa and all four of his sons (not encluding my dad, but I think he does but he won't get teasted) have hypertension (high blood pressure). This is all on my dads side…I'm not really sure about my mom. I weigh 108 lbs and I am 5 for 2 in a half inches, so I'm not at obese or any thing. Any help on how to prevent me dieing of a heart attack.