Why does tea and coffee have the potential to lower the risk of stroke and dementia?
According to a new study, these beverages can help reduce risk.
Drinking a few cups of tea or coffee a day could significantly reduce the risk of having a stroke or developing dementia, according to researchers.
Drinking two to three cups of coffee or three to five cups of tea per day reduced the risk of stroke by one-third and dementia by 28%, according to research involving 365,682 UK participants.
According to the study, which followed participants for 10 to 14 years and found the beverages reduced the risk of post-stroke dementia, mixing it up and drinking four to six cups of coffee and tea combined had a similar effect.
Scientists aren’t sure why, but they have some ideas.
It could be down to a chemical found in some berries and chocolate, according to Charlotte Mills of the University of Reading, who was not involved in the study.
“Both tea and coffee are high in natural bioactive chemicals like polyphenols, which can also be found in blueberries and cocoa.
“They’ve been shown to have a variety of health benefits, including lowering the risk of neurodegenerative diseases.”
“These polyphenols in tea or coffee could be the cause of the benefits observed in this study,” she speculated.
Yuan Zhang of Tianjin Medical University in China, one of the study’s researchers, believes it has more to do with the caffeine.
“Coffee and tea are two different beverages with overlapping ingredients like caffeine and different biologically active constituents like epigallocatechin gallate and chlorogenic acid.
Dr. Zhang stated, “These constituents appear to have similar mechanisms.”
“Coffee is high in antioxidants and other bioactive compounds, as well as caffeine.”
“Caffeine, catechin polyphenols, and flavonoids in tea have neuroprotective properties, including antioxidative stress, anti-inflammation, and inhibition of amyloid-beta aggregation [which causes dementia],” he said.
Although the study suggests a link, he points out that it is an “observational” study, which means there could be another reason why tea and coffee drinkers are less likely to suffer from strokes or dementia.
However, research suggests that these beverages are beneficial for the two most common neurological disorders as a group.
UK news summary from Infosurhoy.
Why do you think tea and coffee can help you avoid strokes and dementia?
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Why tea and coffee could reduce the risk of stroke and dementia