What is postpartum psychosis? The condition at the center of Lindsay Clancy's murder trial

The murder trial of Massachusetts mother Lindsay Clancy has brought attention to a rare but severe mental health condition. Clancy killed her three children and attempted suicide in 2023. Her defense says she was experiencing postpartum psychosis, which can affect one's grip on reality, but prosecutors say she acted intentionally. Stephanie Sy discussed more with Dr. Julia Riddle.