A South Korean man who played computer games for 50 hours almost non-stop died of heart failure minutes after finishing his mammoth session in an Internet cafe, authorities said on Tuesday. The 28-year-old man, identified only by his family name Lee, had been playing online battle simulation games at the cybercafe in the southeastern city of Taegu, police said. Lee had planted himself in front of a computer monitor to play on-line games on August 3. He only left the spot over the next three days to go to the toilet and take brief naps on a makeshift bed, they said. 'We presume the cause of death was heart failure stemming from exhaustion,' a Taegu provincial police official said by telephone.I have a few friends I worry about this happening to. Hopefully they will take a lesson from this tradgedy!