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Coffee may be the perfect morning choice for many people, with several studies highlighting its multiple health benefits, but new study results reveal that too much can harm brain health over time.
Australian researchers found that higher coffee consumption was linked to a smaller overall brain size, a 53% increased risk of dementia, and a 17% higher risk of stroke.
Moderation is in control
The results of the new study also include reference to a lot of previous evidence that drinking coffee has other health benefits over time, as long as it is not consumed in excess.
While excessive coffee consumption has not been determined to cause dementia, the researchers cautioned against drinking too much coffee, which they defined as no more than six cups per day.
The results of the study, which was conducted by researchers at the University of South Australia in collaboration with academics from other institutions, including the universities of Cambridge and Exeter, were published in the journal Nutritional Neuroscience.
espresso coffee
Most popular in the world
Coffee is one of the most popular drinks in the world, and University of South Australia researcher Kitty Pham said: “With global consumption exceeding nine billion kilograms per year, it is essential that we understand any potential health effects. “
The study is also the most comprehensive in terms of the link between coffee and measures of brain volume, risk of dementia, and risk of stroke. It is also the largest study that considers volumetric brain imaging data and a wide range of confounding factors.
Considering all possible assumptions, it was established that higher coffee consumption was significantly associated with lower brain volume, and “essentially, drinking more than six cups of coffee per day may result in a higher risk of brain diseases such as dementia and stroke “.
Different types of coffee
Two cups a day
According to the recommendations of the European Food Safety Authority, you should not consume more than 400 mg of coffee per day, or around four to five cups at most, and the daily maximum for pregnant women should not exceed 200 mg. .
“Typical daily coffee consumption should be between one or two standard cups,” said researcher Professor Elena Hypponen. Because cup sizes can vary, of course, two cups of coffee a day is usually sufficient.
alternative drink
Researchers are also advising someone who drinks more than six cups a day to rethink and look for an alternative drink.
Researcher Professor David Llewellyn, University of Exeter, added: “People who drink a lot of coffee can reduce the risk of dementia by reducing the amount they drink, for example by drinking tea as an alternative to coffee. , which is not associated with risk of dementia according to the results of the study.
black tea
Caffeine and information processing
Earlier this year, Swiss researchers found that regular consumption of caffeine reduced the volume of gray matter in the brain, suggesting that drinking coffee may impair a person’s ability to process information.
The University of South Australia is continually studying the effects of coffee, one of Australians’ favorite drinks, on human health. In February, an Australian research team found that long-term excessive coffee consumption, six or more cups a day, can increase the amount of fat in the blood, which increases the risk of cardiovascular disease (CVD).
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