Dr. D.,
Are you saying there is no causal link between head trauma and ALS? That seemed to be the main point of the story and it sounded like groundbreaking information that could go along way in prevention (or perhaps someday cure?) of ALS.
It's clear there's a difference between ALS and chronic concussive syndrome. But the Real Sports segment never said Gehrig didn't have ALS, only that he might have gotten it from head trauma.
How would you explain extremely high (statistically improbable) rate of ALS in ex-athletes in sports where head injury is common? Particularly boxing, football and soccer. These athletes are so young and suffer so much, it was encouraging to see that some of that might be preventable in the future. It's disheartening to hear you say otherwise, but if that's how it is, then that's how it is.
Interested to hear your perspective.
-Ryan
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