Study Confirms Drinking Tea Can Improve Cognitive Function
Characterized by symptoms including memory loss and hindered judgment, dementia is a common condition that can affect daily functioning lasting for years or the remainder of a lifetime. Once considered primarily an ailment of the elderly, many people diagnosed with dementia are under the age of 65. Fortunately, there are ways to improve our cognitive function. A 2022 study published in Translational Psychiatry, a sister publication of the scientific journal Nature, showed that drinking tea can inhibit or slow down the aging of the brain and improve cognitive dysfunction. From 2006 to 2010, a team comprising the neurology researchers of Fudan University-affiliated Huashan Hospital, and the Department of Neurology of Qingdao University-affiliated Qingdao Municipal Hospital conducted a survey in the U.K. The study found that, compared with non-tea drinkers, people who favored tea drinks achieved a 16 percent lower overall risk of dementia. During the 4 years, the team selected 377,592 volunteers from 22 regions in the U.K., with an average age of 58.49, of which 54.3 percent were women. Researchers divided study participants into six groups: no tea drinking at all; one to two; three to four; five to six; seven to eight; and nine or more cups of tea per day respectively. Proportional hazard regression models showed a significant association between tea consumption and reduced risk of dementia. Specifically, those drinking one to two cups daily had their risk of dementia reduced by 17.7 percent; three to four by 20.8 percent; and five to six by 19.7 percent. However, when consumption exceeded six cups per day, the risk of dementia was no different than that of non-tea drinkers. Further analysis into dementia types showed that compared with participants who did not drink tea at all, those who drank one to four cups a day had a 16.3 to 19.1 percent lower risk of developing Alzheimer’s disease, but there was no significant difference after more than five cups a day. In vascular dementia, taking one to six cups per day can reduce the incidence rate by 25.0 to 29.2 percent. The research team then followed the study participants for more than nine years and recorded a total of 5,122 cases of dementia. According to the research team, tea consumption has been linked to protection against several diseases. Tea leaves contain various biomacromolecules, the most notable among them being polyphenols in green tea, which can evoke a wide range of cellular antioxidant and nerve rescue activities with the effect of preventing memory deficits. At the same time, biomacromolecules also have anti-inflammatory effects, which can prevent cognitive decline. Ellen Wan has worked for the Japanese edition of The Epoch Times since 2007.
Udumbara
Characterized by symptoms including memory loss and hindered judgment, dementia is a common condition that can affect daily functioning lasting for years or the remainder of a lifetime.
Once considered primarily an ailment of the elderly, many people diagnosed with dementia are under the age of 65. Fortunately, there are ways to improve our cognitive function.
A 2022 study published in Translational Psychiatry, a sister publication of the scientific journal Nature, showed that drinking tea can inhibit or slow down the aging of the brain and improve cognitive dysfunction.
From 2006 to 2010, a team comprising the neurology researchers of Fudan University-affiliated Huashan Hospital, and the Department of Neurology of Qingdao University-affiliated Qingdao Municipal Hospital conducted a survey in the U.K. The study found that, compared with non-tea drinkers, people who favored tea drinks achieved a 16 percent lower overall risk of dementia.
During the 4 years, the team selected 377,592 volunteers from 22 regions in the U.K., with an average age of 58.49, of which 54.3 percent were women.
Researchers divided study participants into six groups: no tea drinking at all; one to two; three to four; five to six; seven to eight; and nine or more cups of tea per day respectively.
Proportional hazard regression models showed a significant association between tea consumption and reduced risk of dementia. Specifically, those drinking one to two cups daily had their risk of dementia reduced by 17.7 percent; three to four by 20.8 percent; and five to six by 19.7 percent. However, when consumption exceeded six cups per day, the risk of dementia was no different than that of non-tea drinkers.
Further analysis into dementia types showed that compared with participants who did not drink tea at all, those who drank one to four cups a day had a 16.3 to 19.1 percent lower risk of developing Alzheimer’s disease, but there was no significant difference after more than five cups a day. In vascular dementia, taking one to six cups per day can reduce the incidence rate by 25.0 to 29.2 percent.
The research team then followed the study participants for more than nine years and recorded a total of 5,122 cases of dementia.
According to the research team, tea consumption has been linked to protection against several diseases. Tea leaves contain various biomacromolecules, the most notable among them being polyphenols in green tea, which can evoke a wide range of cellular antioxidant and nerve rescue activities with the effect of preventing memory deficits. At the same time, biomacromolecules also have anti-inflammatory effects, which can prevent cognitive decline.
