https://www.telegraph.co.uk/news/scienc ... erers.html
Scientists at Northwestern University in the US, discovered that stimulating parts of the brain improved memory by more than 20 per cent.
And the effects appear to last for several days after the treatment.
"We show for the first time that you can specifically change memory functions of the brain in adults without surgery or drugs, “said senior author Dr Joel Voss, assistant professor of medical social sciences at Northwestern University Feinberg School of Medicine
"This non-invasive stimulation improves the ability to learn new things. It has tremendous potential for treating memory disorders."