You must have had a brain fart the first day you decided to light up. Now, new research shows that continuing to smoke can shrivel your brain—it can actually cause key tissues in there to thin, according to a study in Molecular Psychiatry.
In the study, the researchers found that cigarette smokers had slimmer cortexes—the outer portion of the brain that’s crucial for cognition—than those who avoided the problematic pastime. What’s more, for each year the participants puffed away, the amount of thinning in that region of their brains increased.
The cortex is king for thinky things like mental computations. It’s also involved in important functions like attention, and spatial reasoning, says study author Sherif Karama, Ph.D, of McGill University.
So having a thinner cortex doesn’t bode well for your brain—it makes for diminished cognition. In fact, people with Alzheimer’s disease also suffer from thinning of the cortex, along with other cognitive issues.
“If the cortex is broken, the brain is broken,” says Karama.
The advice is simple: Stub out the cancer sticks once and for all, and it’s likely that you’ll experience some bounce-back in your cortex…….
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