While protection against concussive and sub-concussive head blows that lead to brain trauma (TBI) and may lead long-term to chronic traumatic encephalopathy (CTE) is being developed in several areas, by DARPA, US Army research, universities and the NFL‘s helmet providers, the final test has to involve cranial bone similar to those belonging to 20-30 year olds. Testing on humans is out of the question, deceased animal and older human crania are dissimilar and surgical implants do not react like real bone.  The US Army Research Laboratory (ARL) along with university partners are developing synthetic cranial bone that behaves like real 20-30 year old bone when subjected to combat-intensity blasts, for testing devices to mitigate the adverse effects and/or track the effects of those blasts.  Armed With Science