Military Ling completed two war deployments as a neurointensive care physician: Afghanistan (2003) and Iraq (2005), as well as four "Gray Team" missions to study combat brain injuries. His medical studies of the war in Afghanistan and Iraq show that over 50% of those who died of wounds had head injuries. Prior to his position as the founding Director of the Biological Technologies Office at DARPA, Ling was Professor and Acting Chair of the Department of Neurology at the
Uniformed Services University of the Health Sciences (USUHS). He has been on the USUHS faculty since 1995 and is now Emeritus Professor. For many years, he was the Army's only neuro-intensive care physician. Ling is also Professor of Neurology and Anesthesiology & Critical Care Medicine at Johns Hopkins Hospital. Ling served as an Army doctor for 27 years, and retired in 2012. Ling and his work have been featured twice on the TV show
60 Minutes, in 2009 and 2012.
Other Ling is Professor of Neurology, Neurosurgery and Anesthesiology & Critical Care Medicine at Johns Hopkins Hospital and is a member of the neurosciences critical care unit (NCCU) clinical faculty. Ling and his work have been featured twice on the TV show
60 Minutes, in 2009 and 2012. He was also one of the doctors who treated American Congresswoman
Gabby Giffords after she had been shot in the head. Ling's publications include over 200 peer-reviewed journal articles, research reviews, and book chapters with an artificial arm patient. ==Prosthetic arm development==