Harry Kerasidis, MD AKA 'The Brain Doctor', is a leading neurologist and national expert in youth sports concussions and adult nonivasive brain rehab.  Dr. Kerasidis designed the first complete online concussion testing/management program for all sports/levels called XLNTbrain.  He features our 'must read' book for players, parents, coaches and teachers on his website, and soon releases the key book for providers, titled Concussionology - that aligns with Brain In Play's leading edge neuro-epigenetic brain wellness premise.