Finally a more reliable device for combat medics to screen for TBI in the field. The US Department of Defense, before its EHR bombshell (so to speak) yesterday, issued this short Armed With Science article on a sensor-smartphone for quick field diagnosis of TBI. The FDA-cleared BrainScope Ahead 200 marries an Android smartphone with a headset and disposable sensors to measure brain electrical activity, The app in the smartphone then analyses the brain data using algorithms to correlate them to elements relating to TBI. Currently, most combat-related TBI tests are subjective, based purely on symptoms such as headaches, nausea and light sensitivity. The only ‘objective’ test would be a CT scan in a medical facility well off the front lines, which means time wasted in a definitive diagnosis. This is being implemented by the Army Medical Research and Materiel Command at Fort Detrick, Maryland.