{"version":"1.0","provider_name":"ECOticias.com","provider_url":"https:\/\/www.ecoticias.com\/en","author_name":"Adrian Villellas","author_url":"https:\/\/www.ecoticias.com\/en\/author\/adrian-villellas\/","title":"Scientists put rats through 10 weeks of treadmill exercise and found the nerve hubs controlling their hearts changed in opposite ways, with roughly four times as many neurons on the right while cells on the left grew nearly twice as large","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"gOzTryhgCt\"><a href=\"https:\/\/www.ecoticias.com\/en\/rats-treadmill-exercise-heart-nerve-hubs\/37050\/\">Scientists put rats through 10 weeks of treadmill exercise and found the nerve hubs controlling their hearts changed in opposite ways, with roughly four times as many neurons on the right while cells on the left grew nearly twice as large<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.ecoticias.com\/en\/rats-treadmill-exercise-heart-nerve-hubs\/37050\/embed\/#?secret=gOzTryhgCt\" width=\"600\" height=\"338\" title=\"&#8220;Scientists put rats through 10 weeks of treadmill exercise and found the nerve hubs controlling their hearts changed in opposite ways, with roughly four times as many neurons on the right while cells on the left grew nearly twice as large&#8221; &#8212; ECOticias.com\" data-secret=\"gOzTryhgCt\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!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);\n\/\/# sourceURL=https:\/\/www.ecoticias.com\/en\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","thumbnail_url":"https:\/\/www.ecoticias.com\/en\/wp-content\/uploads\/2026\/09\/laboratory-rat-in-research-768x432.jpg","thumbnail_width":600,"thumbnail_height":338}