Regular tea consumption is associated with better cognitive performance
A new Norwegian study has revealed that regular consumption of tea is associated with better cognitive performance in older people.
The study involved 2031 participants, 55% of whom were women aged between 70-74 who underwent series of cognitive tests, which included a battery of six tests conducted by practice nurses.
Commenting on the study in more detail, Dr Catherine Hood of the Tea Advisory Panel notes: "The main findings in relation to cognitive performance were that poor test performance on all six tests reduced as an increasing number of flavonoids were consumed. Flavonoids are a class of compounds found in plants, which have antioxidant activity, plus a wide range of health benefits such as improving heart health and reducing stroke risk."
"The study tests found that tea, which is rich in flavonoids, improved performance on cognitive tests with a sharp dose-response of four cups of tea a day (200ml). In addition, the researchers looked at the effect of tea and herbal tea separately on cognition. They found that the positive associations were stronger when only tea was included and herbal tea was excluded."
"In our own TAP research reviews 4 and studies we have found that tea consumption has shown benefits including improved alertness, short-term recall and reaction time. In addition, a shocking 50% of the population have reported being tired for at least 25% of the time. "
"Most who reported tiredness said it was because they were busy or had work or family commitments (young children, shift work) which curtailed or interrupted their sleep. Some felt stressed and overworked which in itself made them feel tired and a few put it down to illness or hormonal issues (such as the menopause)."
"In summary this study showed a relationship between four cups of tea and improved cognitive performance in older people, thanks to the flavonoid content of tea. More research is needed to evaluate and understand further the flavonoid status and its association with cognitive performance, " concluded Dr Hood.