If you smoke, you've likely heard the pleas from friends and family to quit.
You probably know that smoking makes heart disease, stroke, cancer, emphysema, chronic bronchitis,
and other killers more likely.
You might even know that smoking is the No. 1 cause of preventable death in the U.S. and worldwide.
But knowing about long-term risks may not be enough to nudge you to quit, especially if you're young.
It can be hard to feel truly frightened by illnesses that may strike decades later.
And quitting smoking is hard.
As many as 75%-80% of smokers say they'd like to quit.
But it takes the average smoker five to 10 attempts before successfully quitting.
For some smokers, it's the little things that motivate quitting.
Things like the smell it leaves on your clothes, the way people react when they find out you're a smoker,
the stains it leaves on your teeth -- everyday aggravations that can add up to a tipping point to kick the habit.