"You can't deny it exists, and it is hard to deny there is a link between head trauma and CTE. There's such strong evidence correlating head trauma and collisions and CTE."
Tyler Seau played football through high school and for two years in college. He says he has no symptoms of any brain trauma.
Gina Seau's son Jake, now a high school junior, played football for two seasons, but has switched to lacrosse and has been recruited to play at Duke.
"Lacrosse is really his sport and what he is passionate about," she said. "He is a good football player and probably could continue. But especially now watching what his dad went through, he says, 'Why would I risk lacrosse for football?'
"I didn't have to have a discussion with him after we saw what Junior went through."
Her 12-year-old son, Hunter, has shown no interest in playing football.
"That's fine with me," she said.
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