Close Dr. Bob: Hope for Preventing Alzheimer's Dr. Bob discusses a new medicine that could help prevent Alzheimer's in the future and answers a viewer question about fatigue. September 4, 2016. WBIR 7:34 AM. EST September 04, 2016 TRENDING VIDEOS Find your color for Checker Neyland game Owners reveal hopes for Knoxville Center Mall Cycling legend starts carbon fiber company Vols aim to break superstitious patterns against Gators And Finally: stardom brings new pace of life for Emily Ann Roberts A look at Regal's newest headquarters Ask Todd: Fall colors forecast Campbell County Commission replaces judge TEMA: Don't panic, no gas shortage New Braves stadium to display East TN stone More Stories TDOT hopes Alcoa Highway can reopen Thursday morning Sep 28, 2016, 4:21 a.m. Authorities searching Greene Co. for kidnapping… Sep 28, 2016, 8:58 p.m. Sequoyah HS football team honors teammate and cheerleader Sep 29, 2016, 5:30 a.m.