"You have to run to live" Lee Bong-joo revealed that he has been suffering from muscle tension dysregulation.

On the afternoon of the 14th, the scene aired on the special program 'You Have to Run to Live,' commemorating MBN's 30th anniversary, where the 'Running Crew' participated in a '5km recovery run' at the Donggang River in Jeongseon, Gangwon Province, after finishing their first 'trail running' competition.

They decided to do a 5km recovery run after completing the trail running. Sean noted that a special guest was coming, and then Lee Bong-joo appeared and surprised everyone. Lee Bong-joo is still the holder of the best marathon full course record in Korea.

Lee Bong-joo, who has suffered from muscle tension dysregulation, said, "I feel like I spent four years in hell. There was nothing I could do by my strength. I always relied on my wife, and even walking 100m was difficult."

Lee Bong-joo, who stated that his body gradually hunched due to repetitive contractions of the muscles, added, "I couldn't sleep laying down straight. It was so hard that I depended on medication to sleep. My wish was to run by myself for even 30 minutes." Lee Bong-joo mentioned, "I am currently 70% to 80% better," which drew attention. He explained his routine, saying, "Every morning, I run 7-8km. Sometimes, I run up to 10km."

[Photo] Screen capture from 'You Have to Run to Live' broadcast

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