{"version":"1.0","provider_name":"Best Cardiac Hospitals","provider_url":"https:\/\/www.bestcardiachospitals.com\/blog","author_name":"drcardiac","author_url":"https:\/\/www.bestcardiachospitals.com\/blog\/author\/drcardiac\/","title":"Sympathetic Tone: Definition, Uses, and Clinical Overview - Best Cardiac Hospitals","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"MDJCViBUdo\"><a href=\"https:\/\/www.bestcardiachospitals.com\/blog\/sympathetic-tone-definition-uses-and-clinical-overview\/\">Sympathetic Tone: Definition, Uses, and Clinical Overview<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.bestcardiachospitals.com\/blog\/sympathetic-tone-definition-uses-and-clinical-overview\/embed\/#?secret=MDJCViBUdo\" width=\"600\" height=\"338\" title=\"&#8220;Sympathetic Tone: Definition, Uses, and Clinical Overview&#8221; &#8212; Best Cardiac Hospitals\" data-secret=\"MDJCViBUdo\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\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.bestcardiachospitals.com\/blog\/wp-includes\/js\/wp-embed.min.js\n\/* ]]> *\/\n<\/script>\n","description":"Sympathetic Tone is the background level of activity in the sympathetic nervous system. It helps regulate heart rate, blood pressure, and how strongly the heart contracts. Clinicians discuss it when explaining stress responses, fainting, palpitations, and blood pressure patterns. It is also used in cardiology research and in interpreting certain cardiovascular tests."}