by Marlowe HOOD PARIS, France (AFP) — A chemical in green tea has been shown to improve cognitive ability in persons with Down’s syndrome, scientists and doctors said Tuesday. In a year-long clinical trial, the treatment led to improved scores on memory and behaviour tests, they reported in a study, published in the The Lancet Neurology. The positive impact remained six months after the trial ended. Brain scans revealed that the compound, called epigallocatechin gallate, […]