P., age 61, is a great examply why

Common symptoms of nicotine withdrawal include: Cigarette/nicotine cravings Cravings may last longest of all the withdrawal symptoms Knowing triggers for smoking can help quitters plan to deal with cravings Common triggers include: Emotional: these are intense emotions that cause you to want to smoke such as stress, anxiety, or even boredom Pattern: an activity that is connected with smoking in your life such as drinking alcohol, talking on the phone, driving, or after sex Social: occasions in which you smoke, usually with others such as at a bar, party, or concert Physical withdrawal: this is the body withdrawing from nicotine, which can involve feeling restless or having other withdrawal symptoms or needing to do something with your hands or mouth Feeling down or sad Problems sleeping Irritability Feeling on edge Problems thinking clearly and concentrating Restlessness Slower heart rate Increased hunger/appetite Weight gain Depression From Smoking Cessation Resources References

My comfort zone is now clean air and that upgrade is non-negotiable
Using a non-nicotine stop smoking aid
Oral medications There is a prescription medication that can dramatically decrease smoking cravings
By the end of the campaign, in the late 90s (cigarette advertising was banned outright in 2003), the brand had achieved its aim, creating a seamless blend of art into advertising with thought-provoking, witty and striking images