After a lifetime of thinking that she was just a little bit bad at remembering people, Sadie Dingfelder learned that she had prosopagnosia, a disorder more colloquially known as face blindness. Harvard psychologist Joe DeGutis, PhD, who runs the research study that Dingfelder participated in, joins her to discuss how people with face blindness see the world, why it’s such an interesting disorder to study, and promising treatments that his lab is exploring.