George Visger, 51, has severe short-term-memory loss due to multiple head injuries experienced while playing football. Lianne Milton for NPR hide caption

itoggle caption Lianne Milton for NPR

Umpire Gilbert signals a score. He has been a high school football official for the past 20 years. Tom Goldman/NPR hide caption

itoggle caption Tom Goldman/NPR

At Rye High School in New York, the end-of-game ritual is to jump into a brook. NPR wants to see photos and videos of high school football rituals where you live. clyatt.jasper via Flickr hide caption

itoggle caption clyatt.jasper via Flickr