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According to a new study, middle-aged smokers are significantly more likely than non-smokers to have memory loss and confusion. Studies have shown that smokers are more likely to develop Alzheimer disease than non-smokers, and the risk of developing the disease increases with the number of cigarettes per day. The chemicals in tobacco smoke can damage brain cells and the blood vessels that supply the brain with oxygen and nutrients. The study findings indicate that individuals who have recently quit smoking had a decreased risk of cognitive decline. This suggests that quitting smoking benefits respiratory, cardiovascular, and brain health. The study enabled the research team to compare subjective cognitive decline (SCD) assessments for current smokers, former smokers, and those who quit years ago. The study included 136,018 participants aged 45 and above, with around 11% having SCD. In the data analysis, the frequency of SCD among smokers was about 1.9 times higher than that of non-smokers. The frequency among individuals who had quit smoking during the last ten years was 1.5 times that of non-smokers. Those who had quit smoking more than a decade before the survey had a slightly higher SCD prevalence than non-smokers. These findings might show that the amount of time since quitting smoking does matter and may be related to cognitive functioning.

Smoking May Increase Chances of Mid-Life Memory Loss and Confusion

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