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The researchers, led by assistant professor of neurology and neuroscience Neil Parickh of the Weill Cornell School of Medicine in New York, who made the announcement at an international conference of the American Stroke Association in New Orleans, analysed data on 3,244 people with an average age of 69. Of these, 77% had high blood pressure and 24% had type 2 diabetes, while 23% were smokers. All participants underwent four tests to assess their cognitive-mental function (memory, attention, speed of information processing, etc.). It was found that those who smoked more had significantly worse performance on most tests, to a degree similar to those who had hypertension or diabetes.
As Professor Parikh said, "We were surprised to find that smoking does not act in synergy with high blood pressure or type 2 diabetes to affect cognitive performance. The findings suggest that smoking alone has a fairly strong effect on brain health, independent of other health problems. This means that smoking is bad for brain health even for people who have no other health problems, which are typically associated with poor brain health. A person who smokes cigarettes frequently but is otherwise healthy, without type 2 diabetes or hypertension, nevertheless faces an increased risk of poor brain health."
This, according to the researchers, inevitably raises the question that if someone with mild cognitive impairment quits smoking, this will help to stop their cognitive impairment from worsening, which - otherwise - could develop into dementia in the future.
Source: APE-MPA
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