Researchers at Tianjin Medical University in China found that coffee and tea can reduce the risks of stroke and dementia. They studied health changes in more than 360,000 participants over a period of 10 to 14 years.
The scientific papers the researchers studied were published from 2006 to 2020. The participants were healthy people between the ages of 50 and 74 who self-reported their coffee and tea consumption. During the study period, 5,079 participants were diagnosed with dementia and 10,053 were diagnosed with at least one stroke.
It turned out that those who drank 2-3 cups of coffee, 3-5 cups of tea, or a combination of 4-6 cups of coffee or tea a day had a lower risk of stroke and dementia than other participants.
Drinking only one drink was also associated with a lower likelihood of developing dementia and stroke, but people who drank 2 to 3 cups of coffee and 2 to 3 cups of tea a day - 4 to 6 cups total - had a better outcome.
"Our study suggests that moderate consumption of coffee and tea alone or in combination is associated with a lower risk of stroke and dementia," the study authors said.
However, there may be bias in the results because the study participants themselves reported their preferences and may have made mistakes. Researchers emphasize that it is not possible to state with certainty that coffee and tea help with dementia.
"All we can say is that in this study, people who reported moderate coffee or tea consumption were less likely to have stroke or dementia during the 10-year follow-up," said independent consultant Dr. Lee H. Schwamm, president of the Division of Vascular Neurology at Massachusetts General Hospital.
Earlier, scientists from Hungary said that coffee reduces the risk of heart attack, and recently ecologists said that this popular drink may soon spoil the taste due to climate problems.
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