Quitting is hard. The average smoker tries to quit eight times before succeeding. 22% of all male deaths and 11% of all female deaths are due to smoking. Giving up smoking can reduce the risk of developing many smoking related illnesses. Within 10-15 years of giving up, an ex-smokers' risk of developing lung cancer is only slightly greater than someone who has never smoked. Stop smoking drugs works at the neurological level, reducing the craving for nicotine in any form.