There are two types of people with memory loss in this world, according to Dr. Saunders: the people who know and the people that don’t know. The people that don’t know are in a particularly concerning position because memory loss is an indicator that there’s something else wrong with the brain, whether it’s short-term or long-term.

While long-term memory loss is often associated with older people—the number of people in the world with age-related memory loss is …