Tea and coffee reduce the risk of stroke and dementia


Coffee or tea consumption may be associated with a lower risk of stroke and dementia, according to the largest study of its kind, according to The Guardian.

The research looked at 365,000 people between the ages of 50 and 74 for more than a decade. At first, participants, who were involved in the UK Biobank study, told themselves how much coffee and tea they consumed. During the research period, 5,079 of them developed dementia and 10,053 suffered at least one stroke.

The researchers found that people who drank two to three cups of coffee or three to five cups of tea a day, or a combination of four to six cups of coffee and tea, had the lowest risk of stroke. or dementia.

Those who drank between two and three cups of coffee and between two and three cups of tea daily had a 32% lower risk of stroke. These people had a 28% lower risk of dementia compared to those who did not drink tea or coffee.

The research, conducted by Yuan Zhang and colleagues at Tianjin Medical University in China, suggests that drinking coffee alone or in combination with tea is also linked to a lower risk of post-stroke dementia.

The authors wrote in the journal Plos Medicine: “Our findings suggested that moderate consumption of coffee and tea alone or in combination was associated with a lower risk of stroke and dementia. “

However, scientists have warned that the UK Biobank reflects a relatively healthy sample in relation to the general population, which could limit the ability to generalize these associations. Although coffee and tea may protect against stroke, dementia, and post-stroke dementia, the researchers say the causality of these combinations cannot be concluded.

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