North Carolina ? A postoperative scan of Billy Graham’s brain following a surgery to update a shunt that controls excess fluid is encouraging, his doctor said Thursday as the world-renowned evangelist continued his recovery.

After a large breakfast, the 89-year-old Southern Baptist minister began a daily regimen of exercise that includes walking the halls of Asheville’s Mission Hospitals. The hospital said Graham is in fair condition and spent part of the day watching local and national news.

Graham underwent the elective surgery Wednesday to replace a shunt first installed in 2000.