Story: I can't sleep due to pain in my left knee.

About two years ago, after work, I went hiking, and after 4 p.m., I went up the mountain with the goal of descending quickly when coming down.

I ended up coming down while running. I tend to have a bit of weight, and somehow feeling scared, I hurriedly ran hard and safely came down, but afterward, I developed pain in my left knee. When I walk a lot, my left knee feels sore and painful, making it uncomfortable to sleep at night, and my hand naturally tends to go to my left knee.

I use an electric massage pack at home and also take half-body baths. When the pain is severe, I go to the Korean medicine clinic to get acupuncture.

After getting a traditional Korean massage, I sleep more easily that night.

I'm always cautious now, frequently giving myself massages and walking about ten thousand steps a day, worried that I might develop chronic arthritis in my left knee later on.

Lee Sang is paying a lot of attention to not walking.