Jack Bushnell Hanna, a retired American zookeeper and a former director emeritus of the Columbus Zoo and Aquarium, was recently diagnosed with dementia and what is now believed by his family to be Alzheimer's disease.
Hanna often appeared on "Good Morning America," "The Tonight Show," "Late Show," "Late Late Show," "Larry King Live," "The Ellen DeGeneres Show" and "Maury." He also hosted his own weekly TV programs, including "Jack Hanna's Animal Adventures," "Jack Hanna's Into the Wild," and "Jack Hanna's Wild Countdown."
Rhonna Shatz, DO, adjunct associate professor at the University of Cincinnati and a memory disorders expert with UC Health, was a guest on Simply Medicine, 55KRC, discussing the condition, prevention and possible treatments.
Note: Interview starts at 29:00 mark.
Featured photo of Hanna from ABCNews.com.