Blood Test Could Predict Most Effective Smoking Cessation Aid

A blood test could help people choose a stop-smoking strategy that would give them the best chance of quitting, research in a Lancet journal suggests.

Studies show as many as 60% of people who try to give up start smoking again in the first week. But researchers argue measuring how quickly a person breaks down nicotine could boost the chances of success. Some scientists suggest people who break it down more quickly may crave more cigarettes and in turn find it harder to quit.

Nicotine is one of the most addictive substances in cigarettes — smokers crave more nicotine when their body’s levels drop, prompting them to smoke again.

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