Smoking rates are typically higher among men than women, with about 20% of young adults ages 13 to 15 worldwide smoking. Those who start smoking at a young age tend to continue for 15-20 more years. Tobacco use causes over 438,000 American deaths annually, which is 50 times greater than illegal drug deaths. While 70% of smokers want to quit, only 40% attempt to quit and merely 7% ultimately succeed in quitting.