A rare brain disorder where one hand acts completely outside conscious control, sometimes fighting the other hand. Discover the split-brain science behind alien hand syndrome.
Read More
A rare genetic disorder where the body turns muscle, tendon, and ligament into solid bone. Discover the science behind stone man syndrome.
Read More
Encephalitis lethargica was a mysterious sleepy sickness that infected millions, leaving survivors locked in a catatonic, frozen state for decades.
Read More
In 1518, hundreds of people in Strasbourg danced uncontrollably for weeks until they died of exhaustion and heart attacks. Here is the medical mystery explained.
Read More