Brain is Different in Smokers
"A certain area of the cerebral cortex is thinner in smokers than in people who have never smoked, finds a new study.
The cerebral cortex is an area of the brain that plays an important role in reward, impulse control and decision making.
German researchers obtained high-resolution 3-D images of the brain structures of 22 smokers and 21 people who never smoked. Using these images, the scientists calculated the thickness of the cerebral cortex in each participant.
On average, smokers had a thinner medial orbito-frontal cortex than nonsmokers. The thickness of this region decreased in relation to heavier daily consumption of cigarettes and the number of years a person had been a smoker."