'Higher Risk' of Lung Cancer From Smoking First Thing

Smokers who light up on waking display higher levels of nicotine than those who wait, regardless of the number of cigarettes smoked, US research shows. Scientists measured smokers' levels of cotinine, a by-product of nicotine which has been shown to reflect the risk of developing lung cancer.
Waiting until you had eaten breakfast reduced the amount of this chemical. The team from Penn State College says their study suggests the earlier smokers may need more help to give up. The reasons for the differing levels were unclear, but are thought likely to reflect a more intense way of smoking among those who light up first thing - as their need may be greater than those who can wait. More than 250 healthy people who smoked every day were included in the study, which was published in Cancer Epidemiology, Biomarkers and Prevention.

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