The human body is a miracle. But when it’s not working, it can be the stuff of nightmares. On this new series from master storyteller MrBallen, we’re sharing medical horror stories and diagnostic mysteries that are surgically calibrated to make your blood run cold.

From bizarre, unheard-of diseases and miraculous recoveries to strange medical mishaps and unexplainable deaths — you’ll never hear the phrase “heart-stopping” in the same way again. MrBallen’s Medical Mysteries is a first-of-its-kind collaboration between MrBallen and Wondery, the award-winning company behind Dr. Death.