Green tea is said to have many alleged positive effects on health. Now, researchers at the University of Basel are reporting evidence that green tea extract enhances cognitive functions, in particular the working memory. In the past, the main ingredients of green tea have been thoroughly studied in cancer research. Recently, scientists have also been inquiring into the beverage's positive impact on the human brain.
In a new study, the researcher teams of Prof. Christoph Beglinger from the University Hospital of Basel and Prof. Stefan Borgwardt from the Psychiatric University Clinics found that green tea extract increases the brain's effective connectivity (the causal influence that one brain area exerts over another). This effect on connectivity also led to improvement in actual cognitive performance. The results showed that subjects tested significantly better for working memory tasks after the admission of green tea extract.
The study included healthy male volunteers who received a soft drink containing several grams of green tea extract before they solved working memory tasks. The scientists then analyzed how this affected the brain activity of the men using an MRI. The MRI showed increased connectivity between the parietal and the frontal cortex of the brain. These neuronal findings correlated positively with improvement in task performance of the participants. "Our findings suggest that green tea might increase the short-term synaptic plasticity of the brain," said Borgwardt.
I’m super excited to see that green tea can affect the working memory because I probably drink a cup everyday. I would love to see more studies done on this topic to make me believe it even more. It’s great to see the many benefits of natural resources around us. Drink up guys!
Posted by Samuel Ustayev (Group C)