Researchers have established a connection between coffee drinking and Mild Cognitive Impairment (MCI), which is considered to be precursor of Alzheimer’s disease and dementia.
The study was done by researchers at the University of Bari Aldo Moro, Bari, Geriatric Unit & Laboratory of Gerontology and Geriatrics, IRCCS San Giovanni Rotondo, Foggia and Istituto Superiore di Sanità (ISS), Roma all in Italy.
The group estimated the association between change or constant habits in coffee consumption and the incidence of mild cognitive impairment (MCI), evaluating 1,445 individuals recruited from 5,632 subjects.
The study found that cognitively normal older individuals who modified their habits by increasing with time their amount of coffee consumption (greater than one cup of coffee/day) had about two times higher rate of MCI compared to those with reduced habits (less than one cup of coffee/day) and about one and half time higher rate of MCI in comparison with those with constant habits (neither more nor less one coffee/day).
Also, those who habitually consumed a moderate amount of coffee (one or two cups of coffee/day) had a reduced rate of the incidence of MCI than those who habitually never or rarely consumed coffee.
However, there was no significant association verified between those who habitually consumed higher levels of coffee (greater than two cups of coffee/day) and the incidence of MCI in comparison with those who never or rarely consumed coffee.
The study was carried out on subjects aged between 65-84, and were gotten from the Italian Longitudinal Study on Ageing (ILSA), a population-based sample from eight Italian municipalities with a 3.5-year median follow-up.