1.0Health Science Institutehttps://scienceinhealth.com/esOlivia Tompkins, Cardio Thoracic ICU Nurse, London, CrossFit athlete, CrossFit coachhttps://scienceinhealth.com/es/author/olivia/rich600338<blockquote class="wp-embedded-content" data-secret="dSBVtvgCId"><a href="https://scienceinhealth.com/es/2026/06/05/icu-nurse-survival-mode/">Enfermera de cuidados intensivos: Pensé que solo estaba agotado - hasta que me di cuenta de que mi sistema nervioso estaba atascado en modo supervivencia</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://scienceinhealth.com/es/2026/06/05/icu-nurse-survival-mode/embed/#?secret=dSBVtvgCId" width="600" height="338" title="«ICU Nurse: I Thought I Was Just Exhausted – Until I Realised My Nervous System Was Stuck in Survival Mode» — Health Science Institute" data-secret="dSBVtvgCId" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! 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); //# sourceURL=https://scienceinhealth.com/wp-includes/js/wp-embed.min.js </script>https://scienceinhealth.com/wp-content/uploads/2026/06/olivia.webp12801024After years of ICU work, CrossFit training, and constant exhaustion, one nurse discovered her nervous system was stuck in survival mode. Learn the signs of burnout, anxious thoughts, and chronic stress.