When it comes to sudden memory loss, the most common forms of amnesia are often short-term, and stem from trauma to the brain. But some cases are much more inexplicable. People with Dissociative Amnesia don't experience brain damage, but still lose large chunks of time… and can even forget their entire identity. This episode originally aired in February 2021. Learn more about your ad choices. Visit podcastchoices.com/adchoices