QUESTION

[mare5]

Ok, so I'm reading Allen Carr's book~The Easy Way To Stop Smoking. I find his method/approach wonderful. whyquit.com is really intense, although the information is great. I'm a bit confused that whyquit says it takes 72 hours for all nicotine to be out of the body. That is what I've always known to be true. Allen Carr claims 3 weeks is neccessary for all nictine removed. Any feedback will be appreciated