By Courtney MabeusThe Virginian-PilotJul 22, 2018 Updated Jul 23, 2018HAMPTONCharlene Campbell slipped a blue cap over her ponytail, velcroed a chinstrap into place and popped in her mouthguard.As she settled into her seat at the Hampton Veterans Affairs Medical Center's Behavioral Health Center, Dr. Kenneth Miller guided a plastic helmet-like device, lined on the inside with coils, over her head....