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You must not know how to assess the effects of coffee on your health.

Published: 2026-07-13 Author: World Gafei

Last Updated: 2026/07/13, Researchers at Harvard Medical School in the United States studied 400 stroke patients, comparing their coffee intake an hour before the stroke and the amount of coffee they drank in the past year. The results showed that about 1 in 10 patients had a stroke within an hour after drinking coffee, and coffee drinkers were twice as likely to have a stroke as non-coffee drinkers. And this only happens.

Researchers at Harvard Medical School in the United States studied 400 stroke patients, comparing their coffee intake an hour before the stroke and the amount of coffee they drank in the past year. The results showed that about 1 in 10 patients had a stroke within an hour after drinking coffee, and coffee drinkers were twice as likely to have a stroke as non-coffee drinkers. And this phenomenon only occurs in coffee, other drinks such as tea, cola and so on are not associated with stroke.

According to the study, it is found that people who drink more coffee suddenly are prone to stroke. People who drink less than one cup of coffee a day suddenly add one or two cups of coffee every day, and they are more likely to have blood clots in the brain, which is twice as dangerous as those who do not drink coffee. Especially one hour after drinking coffee, the probability of having a fatal stroke. After absorbing coffee for two hours, the effect of coffee will gradually fade, and the risk of stroke will be gradually reduced.

The researchers point out that it is probably because coffee drinkers have lost their sensitivity to coffee after drinking several cups of coffee a day, causing the body to respond less, which can lead to an increase in blood pressure, loss of elasticity of arteries, and the formation of epinephrine, a stress hormone that causes the heart to beat faster.

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