According to a new study, increasing the coffee intake over time can cause mild cognitive impairment, which can lead to serious neurodegenerative diseases like dementia and Alzheimer’s disease.
The researchers who conducted the study estimated that there is a link between an increased coffee consumption and the higher risk of developing mild cognitive impairment. The new study comes after previous research suggested that drinking more than two cups of coffee is actually beneficial for the brain.
The scientists analyzed data collected from more than 1,400 people aged 65 t0 84 years old. The subjects were selected from a previous study of more than 5,600 people who were part of the Italian Longitudinal Study on Ageing. The subjects were selected from eight municipalities in Italy.
Experts believe that mild cognitive impairment is an early stage of dementia and Alzheimer’s disease. According to the new research, the older individuals who were cognitively healthy but who changed their coffee drinking coffee by increasing the amount, drinking more than one cup a day, were two times more likely to develop mild cognitive impairment, as opposed to the older subjects who drank less than one cup of coffee per day.
The study also revealed that those who consumed a moderate amount of coffee -no more than 2 cups a day- had a lower risk of mild cognitive impairment than those who drank very little or no coffee at all.
The scientists didn’t find any association between those who drank more than two cups of coffee a day and those who didn’t drink or drank it rarely.
Vincenzo Solfrizzi, researcher at University of Bari Aldo Moro, Italy and his colleage Francesco Panza, said that consuming coffee moderately and regularly may help protect the brain against mild cognitive impairment, which confirms previous studies that have shown the long-term benefits of coffee and tea. The caffeine these drinks contain helps against neurological conditions like dementia and cognitive decline.
The researchers found that the subjects who rarely drank or drank too much coffee were more likely to develop mild cognitive impairment. So the trick is to keep it somewhere in between.
Previous studies suggest that caffeine can improve the insulin sensitivity, thus reducing the risk of developing type 2 diabetes, which one of the risk factors that lead to cognitive decline.
The findings of the new study on the effects of too much coffee were published in the Journal of Alzheimer’s Disease.
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