When I started smoking I started with Newport Lights for the first year, and then switched to Marlboro for the next ten years, at which point I switched to Newport 100's for four years and switched back to Marlboro over a year ago due to the fact that the Newports were causing me to wake up in the middle of the night feeling as though I was going to die due to lack of oxygen. It didn't scare me enough to get me to quit though, and switching back to Marlboros which are weaker did the trick. I wish I could quit but if I did i'd just find a worse habit, believe me.