they give you if you're a nonsmoker i i guess there is some kind of studies that show but if you're smoking you're not you're not as you know when you're lighting up or something you know your hands both hands aren't on the wheel or whatever
371693
When you are smoking one hand is on the wheel and the other is holding the cigarette so both hands aren't on the wheel, neither are on the wheel if you are lighting the cigarette.
371694
When you're lighting up a cigarette both hands stay on the wheel.