For peace and happiness is responsible serotonin (and dopamine but it is not relevant here), which is formed from tryptophan, which, inter alia, made up of niacin - in the absence of niacin in the body than it has to it to produce 1 mg of niacin 60mg tryptophan to use what is happening at the expense of serotonin. It just so happens that the body of nicotine can produce a niacin by oxidation - then still more tryptophan to produce serotonin, which can not be perceived as anxiety, nervousness.
You solemnly Promise that you never burn, but I think that this hunger will not fool your body. How do you want to stop smoking then I recommend you pay attention to products containing tryptophan and niacin.
The source of niacin may be a yeast infection - this is what I've read the best source, but you can also use others - lean meat, liver, heart, poultry, fish, beans, peas, brewer's yeast, peanut butter, skim milk, cheese, soy, nuts , dried peaches, whole grains, almonds, mushrooms.
The best sources of tryptophan are boletus mushrooms, cannabis seeds, dried dates, papaya, mushrooms, bananas, strawberries, cherries, mangoes, cashews, gejfruty, pineapple, nuts or carrots, mushrooms, crayfish, and of course egg yolk.
Just a note - the day the body produces serotonin, but at night it is produced melatonin, which is responsible for the ability to tan and hair color.