I too have a story...
there was this guy right, he was a fairly healthy guy but he started hanging out with the wrong crowd. So he went to MacDonalds and started to eat a few extra cheese burgers and started gaining a few extra pounds. Over time because he wasn't exercising he began to put on extra weight so he decided he would smoke a few cigs too but just in a social setting when he was having a few beers as well.
Then one day he was at home and after having a plate of extra cheesy nachos and tacos and some high fat enchildas (that his mate had got for him through a mexican dealer smuggled back in the panels of his car) he fell over and had a massive heart attack.
well they revived him and he survived. He is now scheduled to have a bypass and is on medication for the rest of his life.
Damn those mexican dealers...
(This story was taken from Sports Illustrated a few years ago - thank god they report all the sensational stories for a fair and balanced read...)