The boffins from the University of Reading found in tests that adding blueberries to peoples diet consistently improved their memory.

They say flavonoid rich foods trigger the part of the brain which is responsible for memory and learning - meaning diets rich in fresh fruits may increase your memory capacity.

Dr Jeremy Spencer, from the department of food biosciences says the research could even help in the  treatment of diseases like Alzheimer's.

If your memory is already so bad you can't remember to buy blueberries when you go to the supermarket the chances are you won't remember reading this anyway.