Drinking up to six cups of tea a day may cut the risk of dementia - while drinking more than 13 can increase it.
The Chinese University of Hong Kong team said each extra cup “significantly decreased grey matter” in the brain, which “indicates over-drinking tea might lead to a decline in language and memory functions.”
They added: “Our results shed light on a novel possible mechanism of tea intake to increase the risk [of Alzheimer’s] by reducing brain volume.” However, they also found one to six cups of tea a day may actually cut the risk of dementia.
