Hoarding disorder affects an estimated 6 percent of Americans, meaning as many of 19.5 percent of people are hoarders. What causes the disorder? Who's most likely to be affected? Why do hoarders hoard? We answer those questions and more. Be sure to check out our podcast BLAME Season 2: Lost at Home, where Investigative Reporter Jeremy Jojola takes you along as he explores how a Denver man was found dead in his own living room a year after being declared missing.