Levels of certain proteins in the blood may act as concussion biomarkers
After suffering the brain injury, college athletes had elevated levels of three proteins
![football players colliding](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2020/01/012320_AC_concussion_feat.jpg?fit=1028%2C579&ssl=1)
After a knock to the head, certain proteins in the blood rose in college athletes who suffered a concussion, researchers report.
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