Why do we forget the things we’ve learned?

Have you ever been captivated by a book, full of stories you never knew, revelled in that new knowledge …and then forgotten it all? If the answer is yes, take heart; you are not alone. Why is it we remember some facts easily, and others slip away? In this week’s Why Factor Sandra Kanthal asks why do we forget the things we’ve learned.Image: Brain Concept. Credit: BSIP / UIG via Getty Images