1.0WAMUhttps://wamu.orgadminhttps://wamu.org/author/admin/rich600338<blockquote class="wp-embedded-content" data-secret="kd0pSFE6XF"><a href="https://wamu.org/story/13/12/11/some_young_athletes_may_be_more_vulnerable_to_hits_to_the_head/">Some Young Athletes May Be More Vulnerable To Hits To The Head</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://wamu.org/story/13/12/11/some_young_athletes_may_be_more_vulnerable_to_hits_to_the_head/embed/#?secret=kd0pSFE6XF" width="600" height="338" title="“Some Young Athletes May Be More Vulnerable To Hits To The Head” — WAMU" data-secret="kd0pSFE6XF" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /*! This file is auto-generated */ !function(c,d){"use strict";var e=!1,o=!1;if(d.querySelector)if(c.addEventListener)e=!0;if(c.wp=c.wp||{},c.wp.receiveEmbedMessage);else if(c.wp.receiveEmbedMessage=function(e){var t=e.data;if(!t);else if(!(t.secret||t.message||t.value));else if(/[^a-zA-Z0-9]/.test(t.secret));else{for(var r,s,a,i=d.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),n=d.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),o=new RegExp("^https?:$","i"),l=0;l<n.length;l++)n[l].style.display="none";for(l=0;l<i.length;l++)if(r=i[l],e.source!==r.contentWindow);else{if(r.removeAttribute("style"),"height"===t.message){if(1e3<(s=parseInt(t.value,10)))s=1e3;else if(~~s<200)s=200;r.height=s}if("link"===t.message)if(s=d.createElement("a"),a=d.createElement("a"),s.href=r.getAttribute("src"),a.href=t.value,!o.test(a.protocol));else if(a.host===s.host)if(d.activeElement===r)c.top.location.href=t.value}}},e)c.addEventListener("message",c.wp.receiveEmbedMessage,!1),d.addEventListener("DOMContentLoaded",t,!1),c.addEventListener("load",t,!1);function t(){if(o);else{o=!0;for(var e,t,r,s=-1!==navigator.appVersion.indexOf("MSIE 10"),a=!!navigator.userAgent.match(/Trident.*rv:11\./),i=d.querySelectorAll("iframe.wp-embedded-content"),n=0;n<i.length;n++){if(!(r=(t=i[n]).getAttribute("data-secret")))r=Math.random().toString(36).substr(2,10),t.src+="#?secret="+r,t.setAttribute("data-secret",r);if(s||a)(e=t.cloneNode(!0)).removeAttribute("security"),t.parentNode.replaceChild(e,t);t.contentWindow.postMessage({message:"ready",secret:r},"*")}}}}(window,document); </script> https://wamu.org/wp-content/uploads/2013/12/11/dartmouth_wide-02e80c8ea01e6a4fdcf7a4d9956568e734979c9d.jpg19861116Student athletes know they need to avoid concussions. But hits that don't cause concussion symptoms can affect the brain, too. Researchers are now trying to figure out who is most at risk from those smaller hits, and if they can be warned in advance.