From Boing Boing:
A 7-foot-man walked into an emergency room dangling a 5-foot-woman by her feet. She told the staff that if she was upright, she’d pass out. She was only able to maintain consciousness while upside down. No, this isn’t a joke. This is a true story that her attending physician, cardiac electrophysiologist Louis F. Janeira, recounts in Discover Magazine. Spoiler: The tip of her newly-installed pacemaker had become disconnected from her heart muscle. When she was upside down, the lead reconnected and stimulated her heart.
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