The New York Times is reporting on a peer-reviewed paper in Journal Neuropathy suggesting that baseball legend Lou Gehrig may not have suffered from amyotrophic lateral sclerosis (ALS) at all, but from a fatal disease caused by concussion-like trauma that erodes the central nervous system, producing similar symptoms.

http://www.care2.com/causes/health-policy/blog/lou-gehrig-may-not-have-had-lou-gehrigs-disease/