I never craved cigarettes after I started vaping. It was really surprising but smoking for me had a lot to do with the deed more than nic addiction. I would smoke two packs a day on working days vs 1 pack a day on my day off. I think ex-smokers are more sensitive to cigarette smoke. Once you get your sense of smell back it kind of stinks. Studies suggest nicotine is good for the brain just not smoking.
The remarkable protective effects of nicotine – the addictive chemical in tobacco – on the brain are continuing to surprise scientists. One recent study has found that one of nicotine’s metabolites, cotinine, may improve memory and protect brain cells from diseases such as Alzheimer’s and Parkinson’s. Another new study shows that nicotine can help improve some of the learning and memory problems associated with hypothyroidism.