After a steady climb, boys participation in U.S. high school football peaked in 2009 and began a slow decline, a new analysis shows, The author says concerns about concussions are driving it, but swirling political controversies could make it worse.
After a steady climb, boys participation in U.S. high school football peaked in 2009 and began a slow decline, a new analysis shows, The author says concerns about concussions are driving it, but swirling political controversies could make it worse.