Drinking two coffees and two teas a day may cut risk of stroke and dementia by up to a third, study claims

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  • Chinese researchers followed 500,000 Britons over a decade for study
  • Those who drank two cups of coffee and tea were a third less likely to have a stroke
  • The researchers said their chances of developing dementia also dropped by 28 percent.

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One study suggests that drinking two cups of coffee and tea a day can reduce the risk of stroke and dementia.

Chinese researchers followed 500,000 Britons for more than a decade, monitoring their health. The volunteers were also asked about their consumption of hot drinks.


The results showed that participants who drank two coffees and two teas a day were one-third less likely to have a stroke. And they were 28 percent less likely to develop dementia.

Sticking to only coffee or tea also appears to provide some benefit, even if adults only consume one a day.

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But the team led by Dr Yuan Zhang acknowledged that the findings may have been less by chance, emphasizing that the most obvious link was for many hot drinks.

They said: ‘Our findings suggested that moderate consumption of coffee/tea, either alone or in combination, was associated with a lower risk of stroke and dementia.’

Scientists have found that drinking a cup of coffee or tea every day can reduce the risk of suffering from stroke and dementia (stock image).

The study was carried out by scientists from Tianjin Medical University and published in the journal PLOS Medicine,

The researchers selected participants who were between 50-74 years old and joined the UK Biobank between 2006 and 2010.

The volunteers – who were first questioned about their diets when they signed up – were followed over a ten-year period to check whether they still drank the same amount of coffee and tea.

They were also not asked whether they had added milk or sugar to their drinks.

benefits of drinking coffee

Caffeine has been recognized as safe for consumption in doses up to 400 mg per day for the general population.

Studies suggest that it may have a variety of health benefits, including combating liver disease and type 2 diabetes.

Research has also suggested that it may also help people live longer.

It is the world’s most widely consumed stimulant and reports show that it can increase daily energy expenditure by about five percent.

Researchers have said that combining two to four coffees daily with regular exercise will help in keeping weight off.

A 2015 study showed that just a single cup of joe a day can help millions of dieters stay trim after achieving their desired weight.


Participants who drank coffee and tea were compared with those who did not consume hot drinks.

Independent experts warned today that the study cannot prove that drinking coffee or tea can prevent dementia and stroke. Instead, it only highlights a link.

Dr Charlotte Mills, a nutrition science specialist from the University of Reading, said: ‘There may be other factors at work.’

But she said the findings were ‘consistent’ with other studies that have delved into the benefits of drinking coffee and tea.

Several studies have previously suggested that coffee and tea may reduce the risk of dementia.

But some newspapers have warned that excessive consumption of the popular drink may actually increase the risk.

A study from Australia published in July found that drinking more than six cups of coffee a day made people 53 percent more likely to suffer from dementia.

It is not clear why coffee and tea might reduce the chances of stroke and dementia.

But some experts have pointed to polyphenols in hot drinks, found in blueberries and cocoa, which studies suggest may reduce the risk of neurodegenerative conditions.

Dr Rosa Sancho, head of research at Alzheimer’s Research UK, who was not involved, said: ‘Studies like this have not been able to pinpoint cause and effect.

‘While the researchers attempted to control for other factors that may affect a person’s risk of stroke and vascular dementia, no firm conclusions can be drawn about whether tea or coffee causes this lower risk. Is.

She added: ‘Participants reported only tea and coffee consumption at the start of the study.

‘There are no data on long-term habits, so it is unclear how relevant the findings are to long-term brain health.’

More than 850,000 people in the UK have dementia, including one in six people over the age of 80, which results from an abnormal buildup of proteins in the brain – preventing nerve cells from working properly.

About 100,000 people also have a stroke each year, caused by a blockage in a blood vessel that starves an area of ​​oxygen.


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