Both Eisenberg and Yeates said they are big supporters of sports and exercise, and they would not want parents to keep their kids out of activities over concussion fears.
But both also said that if your child has suffered more than one concussion in a particular sport, it may be time to think about changing to a different activity.
"We don't know what the long-term risks might be," Yeates said. "But since we don't know, it seems best to be conservative and assume it's not good for kids to have multiple concussions."
The U.S. Centers for Disease Control and Prevention has about concussions and sports.
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