Chinese football fans react as they watch the opening football match between Brazil and Croatia of the 2014 FIFA World Cup, in Xuchang, north China's Henan province on June 13, 2014.
Two more Chinese men died due to lack of sleep as they spent their nights watching the FIFA World Cup, bringing the tally to three.
A 51-year-old man suffered a heart attack after the Netherlands thrashed Spain 5-1. Elsewhere, a 25-year-old man was found dead hours after the same game, reports EFE.
A third man, 39, died while watching Uruguay's 1-3 loss to Costa Rica after he spent three consecutive days without sleep to watch the games. He suffered from high blood pressure and died in hospital due to a bleeding brain.
The match times in China range between midnight and 6 a.m. due to an 11-hour time difference between China and Brazil.