Spit Molecules and Concussions By Brian Gruber, MD, MBA | February 21, 2018 Some research studies are more interesting than others and this is one of the more unique ones that shows how spit molecules may be able to help diagnose concussions and predict their length in children. Posted in Sports Medicine and tagged concussion injuries, concussions, head injuries, orthopedic doctors phoenix, orthopedics, sports medicine, sports medicine doctors phoenix