1.0KFF Health Newshttps://kffhealthnews.orgkhnlaurenohttps://kffhealthnews.org/news/author/khnlaureno/rich600338<blockquote class="wp-embedded-content" data-secret="dE2Sjkw1oh"><a href="https://kffhealthnews.org/morning-breakout/what-causes-long-covid-new-study-offers-clues/">What Causes Long Covid? New Study Offers Clues</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://kffhealthnews.org/morning-breakout/what-causes-long-covid-new-study-offers-clues/embed/#?secret=dE2Sjkw1oh" width="600" height="338" title="“What Causes Long Covid? New Study Offers Clues” — KFF Health News" data-secret="dE2Sjkw1oh" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /* <![CDATA[ */ /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); /* ]]> */ </script> Experts warned that the study, led by researchers from Massachusetts General Hospital and the National Institutes of Health, was very small and had "biased data." Regardless, the results suggested that long covid might be driven by long-term nerve damage, NBC News reported.