Tobacco

[g-boy]

Yes, I forgot to mention that though I don't think second hand smoke is as bad as they say, I definitely think it exists, mostly because I have asthma and I attribute it to both of my parents being smokers. Now, before you go and say "well that's different then out in public..." they never smoked inside the house, only outside. But just being near it, outside with them perhaps or in public somewhere when younger....

Now, I won't jump the gun too much... I was born and raised in LA, and the pollution could very well be a factor... but if that were the case, everyone born in a metropolitan area would have asthma... I think parents smoking contributed.