A text analyzing brain-related biomarkers in the blood shows promise for measuring the severity of concussions in teenagers, researchers said. File Photo by Tamas Soki/EPA
Blood tests might be able to tell how badly a concussion has rung a…

A text analyzing brain-related biomarkers in the blood shows promise for measuring the severity of concussions in teenagers, researchers said. File Photo by Tamas Soki/EPA
Blood tests might be able to tell how badly a concussion has rung a…