https://goo.gl/rCNOeQ
At least two life sciences companies are now developing blood tests that can detect concussion more reliably and objectively, and a recent studysuggests such tests may eventually be game-changers. “The biggest problem is that the clinical criteria for diagnosing concussion are very vague,” says Henrik Zetterberg, a professor of neurochemistry at the University of Gothenburg in Sweden. “If someone hits their head and doesn’t feel 100 percent well afterwards, that can fulfill the criteria—it’s not much stricter than that.” A blood test that diagnoses concussion accurately and reliably would, therefore, be a valuable aid to sports teams—and to medicine in general.