"The Skeleton of Death With the Antiquarian Hoarder," by English artist Thomas Rowlandson. From The English Dance of Death, Ackermann, London, 1816. Source: Florilegius/Courtesy of Bridgeman Images.

Hoarding behavior, often depicted in media as extreme clutter and an inability to discard items, is more than just a habit of collecting. It’s a complex psychological condition that affects millions ...