A Very Bizarre Anatomical Disease

You know there's a problem if you start coughing up blood—but how to react when you start sweating blood? The patient tends to break out in the bloody sweating when she's either asleep or doing something physical, and the condition seems to get worse when she's stressed. An episode can last up to five minutes. Although it's not known what spurs such bleeding, different theories have emerged. A Toronto hematologist thinks this patient has "a very bizarre anatomical defect on a microscopic level" that's causing her bleeding.