My parents were heavy smokers. Their day to day lives were filled with a lot of coughing, even in their 30s.

Myself, I'm not overweight - I weigh about 60kg, and am 1.75m tall - but I don't exercise. I don't see that it's worth the amount of time it takes out of my day.

My perspective may change if I find myself physically challenged in anything I do. But that seems to be some way off just yet.

not sure if this is just a joke but if it's half in ernest, I've seen a few people die in their 50's from lung camcer. I think when you're in your fifties you'd still have 15 good years or so. Maybe more.