Powdered matcha green tea can improve the quality of sleep and partially enhance cognitive function, results from a Japanese clinical trial suggest.
The study was conducted jointly by Japanese tea company Ito En and local startup MCBI. The findings were first presented at an international conference held in the U.S.
The study examined elderly people diagnosed with mild cognitive impairment and subjective cognitive decline, or self-reported memory loss. Both are early warnings signs of dementia.
One group took 2-gram capsules of matcha daily for a year. That is the equivalent of a cup of matcha tea. Another group was given a placebo.
Results showed the adults in the test group reported improved sleep quality scores. The test group also exhibited better social recognition, which is the ability to judge people's emotions by reading facial expressions. ...continue reading
