Drinking Tea Or Coffee May Reduce Risk Of Dementia, Study Suggests - Beritaja

Drinking beverage aliases java whitethorn thief sphere encephalon usability and trim dementia risk, a ample US study has suggested.

Researchers said those who had the highest regular intake of caffeinated java had an 18% little consequence of processing dementia compared to those pinch the lowest specified intake.

People who drank the about beverage appeared to person a 16% reduced risk.

The study, published successful the Journal of the American Medical Association (JAMA), ​also recovered that those who consumed the about beverage and java besides showed a slower complaint of cognitive diminution compared to those who drank the least.

But decaffeinated java was not associated pinch little dementia consequence aliases amended cognitive performance.

Experts from Harvard University examined information connected 131,000 wellness workers successful the US, who were tracked for an mean of 43 years.

"We observed the about favourable associations were astatine mean intake levels - the strongest associations were seen astatine about 2 to 3 cups per time of caffeinated java and about 1 to 2 cups per time of tea," study leader Dr Daniel Wang of Harvard Medical School said ​in a statement.

But the study does not beryllium caffeine ‌helps protect the brain.

Researchers besides concluded the effect of caffeine, if any, was small, and location are ‌other amended ways to protect cognitive usability arsenic group age.

Lifestyle factors linked pinch little risks of dementia see beingness exercise, a patient fare and capable sleep, according to erstwhile research.

Study has 'important limitations'

Commenting connected the study, Dr Susan Kohlhaas from Alzheimer's Research UK, said the investigation "doesn't beryllium that java aliases beverage protect the brain".

Professor Tara Spires-Jones, astatine the UK Dementia Research Institute, agreed location were "important limitations", adding that "other factors related to java and tea-drinking habits could beryllium responsible".

Further investigation is needed to validate the factors and mechanisms responsible ‍for the findings, the researchers said.

They noted that bioactive ingredients successful java and beverage specified arsenic caffeine and polyphenols person emerged arsenic imaginable factors that trim nervus compartment inflammation and harm while protecting against cognitive decline.

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Other experts offered a mixed, but broadly cautious, response.

Dr Mohammad Talaei, from Queen Mary University of London, said location was "a robust association" but warned that "reverse causation is simply a concern" and that dietary substitutions whitethorn complicate findings.

Reverse causation could use successful this lawsuit by creating an illusion that caffeine lowers dementia risk, erstwhile it is besides imaginable that group pinch early cognitive diminution associated pinch dementia whitethorn alteration their beverage aliases java drinking habits, perchance reducing their caffeine intake.

Professor Jules Griffin, from the University of Aberdeen, described "compelling evidence" of little consequence but pointed retired "the simplification successful consequence is rather a mini decrease", while Professor Naveed Sattar astatine the University of Glasgow said he would construe the findings pinch "considerable caution", pointing retired they were "suggestive" only.

Meanwhile, Dr Simon White astatine the University of Cambridge stressed the study was not capable to urge changing people's behaviours.