Chris Lytle, 71, began having trouble walking to work in November 2021.
“I had to start taking the elevator instead of walking up one flight of stairs,” Chris explained.
“I thought I was in pretty good shape. I’ve been a marathoner and skied the American Birkebeiner in my lifetime.”
Several weeks later, Chris and a friend walked up a small incline on Chattanooga's scenic lookout mountain.
“All of a sudden I was panting and holding onto my knees for support,” said Chris.
“I was in denial and blamed the altitude, but Lookout Mountain is...