An amazing thing happened to 25-year-old student. During one of his trips into the mountains he was caught in an avalanche and miraculously survived. The entire 15 minutes he was under a layer of snow in a state of hypoxia. After the incident, the boy appeared myoclonic convulsions of the tongue and feet, says Zee News.
Some time later, the student decided to tackle complex Sudoku. During this time he developed severe clonic convulsions in the left hand. The attack lasted for several seconds while the young man did not put the puzzle aside.
Apparently, the lack of oxygen damaged his brain. To blame for the seizures, most likely, not Japanese puzzles, and excessive mental stress. The patient after the seizure has stopped to solve Sudoku, however, and stopped seizures.