When he came home from the war in Iraq 10 years ago, Jason Sagebiel, a scout-sniper and sergeant in the U.S. Marines, knew something wasn’t right. He was losing weight rapidly, getting lightheaded after going up only a few steps, and without knowing it, was slurring his speech.

It took many tests — and even a diagnosis of parasites that he treated with medication to help him gain his weight back – to find that he had bleeding in his brain stem.

“Looking back, we finally made the connection,” Sagebiel said. “What we know about brain injuries now is they usually don’t happen from one occurrence, they usually happen from multiple occurrences.”

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