It’s probably something similar to the research showing both black and green tea affect enzymes involved in Alzheimer’s,

but Yun Bai and his team at the Third Military Medical University in China have found that the chief polyphenol in Green Tea, called EGCG, helps new brain cells grow in a central region crucial to the brain’s ability to adapt to change.

+and also navigate mazes.

Links:
• via: EurekAlert-EGCG

• More Coverage: ScienceDaily-EGCG