Doctors of many specializations talk about health-promoting properties. It should also be praised by neuroscientists. A long-term study has shown that drinking more coffee can reduce the risk of developing Alzheimer’s disease, reports the journal Frontiers in Aging Neuroscience. Just drinking two cups of coffee a day can bring results.
- Alzheimer’s disease is a neurodegenerative disease that mainly affects people over 65
- Alzheimer’s disease is just one form of dementia. It is estimated that around 50 million people worldwide suffer from dementia
- A study by Australian scientists showed that drinking coffee reduces the risk of cognitive decline
- Increasing to two cups of coffee a day could potentially lower cognitive decline by 8 percent. after 18 months, say the authors of the study
- More important information can be found on the Onet homepage
Coffee drinking and Alzheimer’s disease
As part of the Australian Imaging, Biomarkers and Lifestyle Study of aging, the team of Dr. Samantha Gardener of Edith Cowan University (ECU) investigated whether coffee consumption affected the rate of cognitive decline in over 200 Australians over a decade. The results obtained showed a relationship between coffee and several important markers associated with Alzheimer’s disease.
‘We found that participants with no memory impairment and consuming more coffee at the start of the study had a lower risk of either progressing to mild cognitive impairment – which often precede Alzheimer’s disease – or developing Alzheimer’s disease during the study, Dr. Gardener said.
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Drinking more coffee had positive results especially for executive functions, which include planning, self-control and attention. Higher coffee consumption also appeared to be to be associated with slower accumulation in the brain of amyloid, a key protein in the development of Alzheimer’s disease.
As Dr. Gardener pointed out, although more research is needed, the results already present indicate that drinking coffee may be an easy way to delay the onset of Alzheimer’s disease. “It’s a simple thing that people can change,” she said. – This may be especially useful for people who are at risk of cognitive decline but who have had no symptoms. We may be able to develop clear guidelines that people can follow in middle age, and hopefully then it will have a lasting effect.
Two cups of coffee a day are enough
If the average cup of home-made coffee is 240 grams, increasing to two cups of coffee a day could potentially lower cognitive decline by 8 percent. after 18 months, Dr. Gardener noted. – You can also observe 5 percent. decrease in amyloid accumulation in the brain over the same period. (…) We need to assess whether one day coffee consumption may be recommended as a lifestyle factor aimed at delaying the onset of Alzheimer’s disease, the researcher said.
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In Alzheimer’s disease, individual amyloid lumps form plaques that are toxic to the brain.
The study failed to distinguish between decaffeinated and caffeinated coffee, or the benefits and consequences of its preparation (brewing method, presence of milk and / or sugar, etc.).
Scientists have yet to establish exactly which coffee ingredients are responsible for what appears to be a positive effect on brain health. Preliminary studies indicate that caffeine may not be the only factor potentially delaying Alzheimer’s disease.
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Caffeine, a by-product of decaffeinated coffee production, has been shown to be equally effective in partially preventing memory impairment in mice, but other coffee components such as cafestol, kahweol and eicosanoyl-5-hydroxytryptamide also contribute to the risk of cognitive impairment in animals.
Author: Paweł Wernicki.
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