[peterwwillis]

A bag of potato chips will not shorten your life. It's potatoes, vegetable oil and salt. You probably eat these things all the time. But since it's not a very healthy moderation of these things, it's better not to eat a ton of it. A soda is less good for you, but also won't shorten your life, unless you have a sensitive stomach or are a diabetic or something.

Trying to be in the best health possible would make me miserable. If you find it rewarding, then go do that. But please remember that others are entitled to live however they want (and preferably without someone telling them how unhealthy and short their life will be). I'll probably be dead by 70 from being too happy, which is okay with me.