Researchers say smoking is to blame for about 90% of lung cancers and is linked to at least 18 other types of cancer. And if you smoke, you've likely heard the pleas from friends and family to quit. But pleas from family and friends, and knowing about long-term risks, may not be enough to nudge you to quit. HOWEVER, QUITTING SMOKING IS THE ABSOLUTE BEST THING YOU CAN DO FOR YOUR HEALTH. Watch this short video and learn to quit smoking in 5 easy steps.