Around two million people a year end up in emergency rooms with concussions. Although an even larger amount of concussions go unnoticed because they don't experience the classic symptoms of a concussion. This can lead to long-term health issues like chronic headaches, memory loss and depression. However, this may change due to a simple blood test created by Dr. Linda Papa. Doctors may now be able to accurately diagnose concussions for up to seven days after the patient has sustained an injury. To verify the accuracy of the test, the team conducted several blood tests on over 600 patients, 18 and older. When they compared the test results with the patient's CT scans, they found that the blood test was able to accurately identify mild to moderate concussions 97% of the time.