HaHa was�hospitalized on the morning of December 6th due to a high fever accompanying acute pancreatitis. Even so, HaHa showed his fighting spirit by filming 'Running Man' that same night until the next morning. A representative expressed, 'He couldn't let the broadcast fall through. He came to the filming with a cheerful spirit.' HaHa's body naturally became overly stressed, and so his condition worsened, causing him to be re-admitted into the hospital for treatments. It was revealed that his fever finally went down on the 8th. Although his condition is stable, he will have to undergo a thorough checkup before he gets discharged. Source: Star News via Nate