More than 100 people living in Kalachi, Kazakhstan reportedly have fallen fast asleep for days at a time and woken with some amnesia. Kalachi is near a former uranium mine but officials say the weird phenomena is not caused by radon gas but perhaps carbon monoxide poisoning.
"Carbon monoxide is definitely a factor, but I can't tell you whether this is the main and vital factor," Sergei Lukashenko, the director of Kazakhstan's National Nuclear Centre's Radiation Safety and Ecology Institute, told the Siberian Times. "The question is why it does not go away. We have some suspicions as the village has a peculiar location and weather patterns frequently force chimney smoke to go down instead of up."
Scientists are running tests in the town that has now been nicknamed Sleepy Hollow.
