Levels of grey matter in two parts of the brain may be linked to a desire to start smoking during adolescence and the strengthening of nicotine addiction, a new study has shown. A team of scientists, led by the universities of Cambridge and Warwick in the UK and Fudan University in China, analysed brain imaging and behavioural data of over 800 young people at the ages of 14, 19 and 23. They found that, on average, teenagers who started smoking by 14 years of age had markedly less grey matter in a section of the left frontal lobe linked to decision-making and rule-breaking.

https://www.miragenews.com/teen-smoking-nicotine-addiction-tied-to-less-1065941/

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