Eating blueberries can reverse memory loss and may have implications in the treatment of diseases like Alzheimer's, University of Reading scientists claim.
Scientists found adding foods like blueberries to a regular diet, resulted in improvements in memory. The foods, known as flavonoids, were historically believed to act as antioxidants in human bodies.
But the study indicates they also activate the part of the brain which controls learning and memory.
Dr Jeremy Spencer, from the department of food biosciences at the university, said: "Scientists have known of the potential health benefits of diets rich in fresh fruits for a long time.