https://jamessoutier.webs.com/apps/photos/ Brain Scan The left image shows a normal brain scan and middle and right images show scans of pro football players from the study. The green and red colors demonstrate the higher level of tau protein found in the brain. Note the higher levels (more red and green) in the players? scans. https://jamessoutier.webs.com/apps/photos/photo?photoID=196378282 196378282