Still Smoking? Timing of First Puff of the Day Is Key
Smokers who light up shortly after waking up have greater exposure to nicotine than those who wait until later in the day — regardless of how many cigarettes they smoke, researchers found.
Levels of cotinine, a nicotine metabolite, were higher in those who smoked 10 cigarettes a day and lit up within a half hour of waking up than in those who smoked 20 cigarettes a day but waited at least 30 minutes to have their first one (326 versus 268 ng/mL), according to Joshua Muscat, PhD, MPH, of Penn State College of Medicine in Hershey, Pa., and colleagues.
“So in essence, it’s almost as if [early smokers] are being exposed to twice the amount of cigarette smoke as people who refrain from smoking for a longer period after waking up,” Muscat said in an interview.
The findings were reported online in Cancer Epidemiology, Biomarkers & Prevention.
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December 4, 2009
Tags: early morning smoking, first cigarette of day Posted in: COPD - Smoke Free!
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