This document discusses the challenges of quitting smoking. Nicotine addiction from tobacco is very strong, due to the over 4,000 chemicals in tobacco, including 60 carcinogens. Quitting cold turkey is the most common method, but has a low success rate of 3-10% due to strong physical and mental addiction to nicotine that causes withdrawal symptoms for up to three months. Smokers can save $2,000-$3,000 per year by quitting. Benefits of quitting include improved health, smell, and a cleaner environment.