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A cup of tea can improve brain power

Last Updated: Sunday, February 27, 2011, 10:59

Drinking tea not only improves brain power, but also improves the performance.

Stone age humans took two million years to develop brain power

Last Updated: Thursday, November 04, 2010, 12:54

Stone age humans took nearly two million years to develop the brain power to make sophisticated tools like hand-held stone axes, a new study has claimed.