Herschel Walker, right, checks a Team Dover member's identification card, along with Airman 1st Class Eric Martinez, 436th Security Forces Squadron response force member, middle, at the main gate Oct. 13, 2015, on Dover Air Force Base, Del. Walker met with 436th SFS personnel, toured the Commercial Vehicle Inspection Facility, checked identification cards and met with a military working dog team during his 3-day visit to Dover AFB. (U.S. Air Force photo/Roland Balik)

Former NFL running back and 1982 Heisman Trophy winner Herschel Walker, right, chats with Col. Michael Grismer, 436th Airlift Wing commander, left, Oct. 13, 2015, on Dover Air Force Base, Del. Walker came to meet and talk with members of Team Dover during a 3-day visit to the base that included him speaking at the base theater during Wingman Day by emphasizing to Airmen that it is OK to ask for help from behavioral health professionals. (U.S. Air Force photo/Roland Balik)

Herschel Walker, left, chats with Staff Sgt. Craig Eveland, 436th Security Forces Squadron military working dog handler and MWD Ramos Oct. 13, 2015, on Dover Air Force Base, Del. Walker, in partnership with the Patriot Support Program's Anti-stigma campaign, visited the base to help spread the message to Team Dover members during Wingman Day advocating to Airmen that it is OK to ask for help through behavioral health services. (U.S. Air Force photo/Roland Balik)

Former NFL running back and 1982 Heisman Trophy winner Herschel Walker, right, autographs a photo for Senior Airman Vernon Gary, 512th Security Forces Squadron response force leader, left, Oct. 13, 2015, on Dover Air Force Base, Del. At each stop on his base tour, Walker autographed photos and answered personal and sports-related questions from Team Dover members. (U.S. Air Force photo/Roland Balik)

Herschel Walker, second from left, chats with members of the 436th Airlift Wing Safety Office Oct. 13, 2015, on Dover Air Force Base, Del. Walker shared stories about his upbringing, family, business and sports career, including his experience and treatment of Dissociative Identity Disorder by seeking the help of behavioral health professionals. (U.S. Air Force photo/Roland Balik)

Herschel Walker, right, speaks to members of the 436th Operations Support Squadron Oct. 13, 2015, at the Aircrew Flight Equipment facility on Dover Air Force Base, Del. Walker and the Patriot Support Program's Anti-stigma campaign go around to military installations throughout the year. The Patriot Support Program is part of Universal Health Services, a TRICARE Provider. (U.S. Air Force photo/Roland Balik)

Former NFL running back and 1982 Heisman Trophy winner Herschel Walker speaks to Team Dover members on Wingman Day, Oct. 14, 2015, at the base theater on Dover Air Force Base, Del. The Patriot Support Program's Anti-stigma campaign and Walker came to spread his message of There is no shame in getting help. I did. to Team Dover members during Wingman Day by telling service members their treatment begins at that point for them and their families. (U.S. Air Force photo/Roland Balik)

Speaking to a standing-room-only audience, former NFL running back and 1982 Heisman Trophy winner Herschel Walker speaks to military and civilian Airmen of Team Dover on Wingman Day Oct. 14, 2015, at the base theater on Dover Air Force Base, Del. Walker, who was diagnosed with Dissociative Identity Disorder, shared his own personal experience and treatment by seeking help through behavioral health services. In partnership with the Patriot Support Program and part of the program's anti-stigma campaign message, he emphasized to those in attendance that it is OK to ask for help. (U.S. Air Force photo/Roland Balik)

Herschel Walker performs push-ups for children Oct. 14, 2015, at the Youth Center on Dover Air Force Base, Del. Walker demonstrated how push-ups can be performed in a variety of ways to work different muscle groups and build strength in young athletes. (U.S. Air Force photo/Senior Airman William Johnson)