This research says that with age the brain naturally starts weakening. In such a situation, if you smoke, then the brain starts aging prematurely.
The findings, published in Biological Psychiatry: Global Open Science, help explain why smokers are more likely to suffer from a number of diseases as they age, including Alzheimer's disease.
For years, when it comes to the harm caused by smoking, we only talk about the lungs and the body, but an American professor said that the dangerous effects of smoking are visible on the brain.
Brain volume begins to decrease. They have an increased risk of dementia and Alzheimer's disease. Quitting smoking may help prevent brain shrinkage.
Research has clearly shown that smoking and a smaller brain are linked. But they were never sure which factor was responsible. Smoking causes the brain to shrink and the more a person smokes, the greater the damage.