Sudoku has been known as a way to better stimulate the brain – but for one 25-year old student, the puzzles caused a troubling reaction.
The physical education student was buried by an avalanche during a ski trip and suffered from oxygen deficiency for 15 minutes.
Weeks following the incident, the patient was trying to solve Sudoku puzzles and began to develop rapid contractions of the muscles on his left arm also known as clonic-seizures.
German researchers say the areas of the brain used to solve the puzzles were the same brain regions that suffered oxygen loss in the accident and likely caused the seizures once they were in use.
The patient has since stopped solving sudoku puzzles and has been seizure-free for over five years.