When we quit smoking, water eases several of the discomforts associated with nicotine withdrawal: Constipation Coughing Hunger/urge to eat Cravings to smokeWater also helps flush residual nicotine out of the body, and by keeping yourself well-hydrated, you'll feel better overall. That can only help as you make your way through the discomforts of nicotine withdrawal. Sources:
Water in Diet. 02 September 2005. Medline Plus.
Nurses Can Help Smokers Quit. January 1993. National Institutes of Health.