1.0Mindful by Sodexohttps://www.mindful.sodexo.com/en-nlrich600338<blockquote class="wp-embedded-content" data-secret="QZqXf4EmC2"><a href="https://www.mindful.sodexo.com/en-nl/say-goodbye-to-sit-ups/">Say goodbye to sit-ups</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.mindful.sodexo.com/en-nl/say-goodbye-to-sit-ups/embed/#?secret=QZqXf4EmC2" width="600" height="338" title="“Say goodbye to sit-ups” — Mindful by Sodexo" data-secret="QZqXf4EmC2" 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> Fitness pros love to point out that the core is the body’s powerhouse. They’re right: The group of muscles that surround and support the spine deserve our attention and respect. Does it mean you have to do crunches every day? Fortunately, they are not the only way to get stronger abs. And it turns out […]