text: i am in my 40s and grew up with? second hand smoke and i never experienced anything bad from it. now all of a sudden they are saying "any amount is dangerous." probably every kid i grew up with lived with second hand smoke and not one person i know or have i even heard about has experienced anything bad.  how are they coming up with this stuff and do you believe it? im not believing everything i hear, they make it sound like if you had second hand smoke from 1 cigeratte 20 years ago you may be at risk for cancer ,,,, gimme a break it takes more than that