The curse of 370 is an idea first posited by Aaron Schatz of Football Outsiders in the good old days of 2004. Strictly stated, the curse states that any running back that amasses 370 or more touches in a season will end up having a down year the following season.
Every running back takes more punishment than any other position in football, and it appears that 370 is the magical tipping point for how much of that W & T is too much. Schatz points to Terrell Davis, Eddie George and Jamal Lewis as proof of this theory.