One of the biggest issues in American healthcare is costs. Surgeries, emergency room visits, prescriptions and basically anything you can think of costs an exorbitant amount of money. And while many of our politicians are debating ways to drive prices down, but no one seems to be asking a big question: Why the heck is everything so expensive in the first place?

Adam Ruins Everything is a television show on TruTV where host Adam Conover explores some of society's pressing issues and institutions and exposes some unknown, usually disturbing facts about them. He's investigated everything from the diamond industry to airport security to the electoral system.

One of his most recent investigations involved hospitals, and why costs are so high. In the video above, he shares some of his insights. As with most things involving the healthcare, there's a lot to do with greedy insurance companies.