There are 1,500 teens playing high school football . Confusion , nausea , headache are some of the symptoms of concussions . That 's because , in her view , `` We do n't have the research available to us yet to actually concretely say anything . '' the National Center for Catastrophic Sport Injury Research players receive 1,500 1,500 900 to blows to the head each season . High schools are changing the rules and implementing safety programs .
There are 1,500 teens playing high school football . Confusion , nausea , headache are some of the symptoms of concussions . the National Center for Catastrophic Sport Injury Research players receive 1,500 1,500 900 to blows to the head each season . High schools are changing the rules and implementing safety programs .