{"id":12905,"date":"2024-07-08T11:55:54","date_gmt":"2024-07-08T19:55:54","guid":{"rendered":"https:\/\/www.thyforlife.com\/?p=12905"},"modified":"2024-07-21T11:46:37","modified_gmt":"2024-07-21T19:46:37","slug":"euthyroid-sick-syndrome","status":"publish","type":"post","link":"https:\/\/www.thyforlife.com\/euthyroid-sick-syndrome\/","title":{"rendered":"What is Euthyroid Sick Syndrome?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"12905\" class=\"elementor elementor-12905\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c01a372 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c01a372\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3a65349\" data-id=\"3a65349\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-149ceb1 elementor-widget elementor-widget-image\" data-id=\"149ceb1\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.freepik.com\/free-photo\/female-patient-doctor-talking-nice-subject_15634201.htm#fromView=search&#038;page=1&#038;position=0&#038;uuid=de859939-2eaa-4732-9274-14eda2c485ca\">\n\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"532\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/www.thyforlife.com\/wp-content\/uploads\/2024\/07\/female-patient-doctor-talking-nice-subject-1024x681.jpg\" class=\"attachment-large size-large wp-image-12906 lazyload\" alt=\"What is Euthyroid Sick Syndrome?\" data-srcset=\"https:\/\/www.thyforlife.com\/wp-content\/uploads\/2024\/07\/female-patient-doctor-talking-nice-subject-1024x681.jpg 1024w, https:\/\/www.thyforlife.com\/wp-content\/uploads\/2024\/07\/female-patient-doctor-talking-nice-subject-300x200.jpg 300w, https:\/\/www.thyforlife.com\/wp-content\/uploads\/2024\/07\/female-patient-doctor-talking-nice-subject-768x511.jpg 768w, https:\/\/www.thyforlife.com\/wp-content\/uploads\/2024\/07\/female-patient-doctor-talking-nice-subject-1536x1022.jpg 1536w, https:\/\/www.thyforlife.com\/wp-content\/uploads\/2024\/07\/female-patient-doctor-talking-nice-subject-2048x1363.jpg 2048w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><noscript><img decoding=\"async\" width=\"800\" height=\"532\" src=\"https:\/\/www.thyforlife.com\/wp-content\/uploads\/2024\/07\/female-patient-doctor-talking-nice-subject-1024x681.jpg\" class=\"attachment-large size-large wp-image-12906 lazyload\" alt=\"What is Euthyroid Sick Syndrome?\" srcset=\"https:\/\/www.thyforlife.com\/wp-content\/uploads\/2024\/07\/female-patient-doctor-talking-nice-subject-1024x681.jpg 1024w, https:\/\/www.thyforlife.com\/wp-content\/uploads\/2024\/07\/female-patient-doctor-talking-nice-subject-300x200.jpg 300w, https:\/\/www.thyforlife.com\/wp-content\/uploads\/2024\/07\/female-patient-doctor-talking-nice-subject-768x511.jpg 768w, https:\/\/www.thyforlife.com\/wp-content\/uploads\/2024\/07\/female-patient-doctor-talking-nice-subject-1536x1022.jpg 1536w, https:\/\/www.thyforlife.com\/wp-content\/uploads\/2024\/07\/female-patient-doctor-talking-nice-subject-2048x1363.jpg 2048w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/noscript>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">\u00a9Freepik<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-00e395e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"00e395e\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-0d8aa67\" data-id=\"0d8aa67\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b0bd5f9 elementor-widget elementor-widget-text-editor\" data-id=\"b0bd5f9\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">The thyroid is a small, butterfly-shaped gland located at the base of your neck. It plays an important role in the body\u2019s metabolism by producing and releasing hormones, mainly <\/span><b>thyroxine (T4)<\/b><span style=\"font-weight: 400;\"> and <\/span><b>triiodothyronine (T3)<\/b><span style=\"font-weight: 400;\">. These hormones influence how quickly your body uses and stores energy. They also impact various bodily functions including heart rate, body weight, energy levels, and skin health. The production and release of T4 and T3 are regulated by thyroid-stimulating hormone (TSH), which is secreted by the pituitary gland. This regulatory process is part of the <\/span><a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/27347897\/\"><span style=\"font-weight: 400;\">hypothalamic-pituitary-thyroid (HPT) axis<\/span><\/a><span style=\"font-weight: 400;\">, ensuring that thyroid hormone levels remain within a normal range.<\/span><\/p><p><span style=\"font-weight: 400;\">Now, imagine getting a blood test result showing low thyroid hormone levels. Normally, this might point to hypothyroidism, a condition where the thyroid gland isn\u2019t producing enough thyroid hormones. But, it could be something else. Sometimes, these low levels can happen due to a different reason entirely, and you might not actually have a thyroid problem. This is called euthyroid sick syndrome (ESS).<\/span><\/p><p><b>Euthyroid Sick Syndrome (ESS)<\/b><span style=\"font-weight: 400;\">, also known as <\/span><b>non-thyroidal illness syndrome (NTIS)<\/b><span style=\"font-weight: 400;\">, is a state where your body\u2019s response to illness throws your thyroid hormone levels off balance. Even though the test results show low levels, your thyroid gland itself is working normally. This syndrome is commonly seen in hospitalized patients, especially those with severe illnesses or conditions that aren\u2019t thyroid-related, such as pneumonia, sepsis, malnutrition (due to starvation or eating disorders), heart failure, kidney disease, liver disease, and <\/span><a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC4319269\/#:~:text=Results%3A,feature%20of%20sick%20euthyroid%20syndrome.\"><span style=\"font-weight: 400;\">HIV<\/span><\/a><span style=\"font-weight: 400;\">.\u00a0<\/span><\/p><p><span style=\"font-weight: 400;\">This article answers some questions regarding the causes, symptoms, diagnosis, and treatment of euthyroid sick syndrome.\u00a0<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<header class=\"elementor-section elementor-top-section elementor-element elementor-element-58494b2 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"58494b2\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4e9b660\" data-id=\"4e9b660\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2ef79fa elementor-widget elementor-widget-heading\" data-id=\"2ef79fa\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Why do thyroid hormone levels drop in euthyroid sick syndrome?<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-de98d2d elementor-widget elementor-widget-text-editor\" data-id=\"de98d2d\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">The exact reasons are still <\/span><a href=\"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/cphy.c150017\"><span style=\"font-weight: 400;\">being explored<\/span><\/a><span style=\"font-weight: 400;\">, but it likely involves a complex interplay between <\/span><a href=\"https:\/\/www.sciencedirect.com\/topics\/medicine-and-dentistry\/euthyroid-sick-syndrome#:~:text=What%20causes%20euthyroid,underlying%20nonthyroidal%20illness.\"><span style=\"font-weight: 400;\">inflammation and how the body uses thyroid hormones<\/span><\/a><span style=\"font-weight: 400;\">.\u00a0<\/span><\/p><p><span style=\"font-weight: 400;\">Normally, the hypothalamus, pituitary gland, and the thyroid gland work together to regulate thyroid hormone production. However, in response to starvation or severe illness, the body undergoes several changes to conserve energy for recovery, which affects various hormonal systems including the hypothalamic-pituitary-thyroid axis. Here\u2019s how the process typically unfolds:<\/span><\/p><ul><li><b>Inflammation and the production of cytokines:<\/b><span style=\"font-weight: 400;\"> Inflammation (the body\u2019s response to illness or injury) and the release of <\/span><a href=\"https:\/\/www.cancer.gov\/publications\/dictionaries\/cancer-terms\/def\/cytokine\"><span style=\"font-weight: 400;\">cytokines<\/span><\/a><span style=\"font-weight: 400;\"> can lead to an altered metabolism of thyroid hormones, specifically a reduction in the conversion of inactive T4 to the active hormone T3. These changes, however, occur because they help conserve energy during illness.<\/span><\/li><li><b>Increase in rT3 Levels<\/b><span style=\"font-weight: 400;\">: As a result of the decreased conversion to T3, there\u2019s an increase in the <\/span><a href=\"https:\/\/www.thyforlife.com\/thyroid-function-tests\/#:~:text=Reverse%20T3%20(rT3)%20Test\"><span style=\"font-weight: 400;\">reverse T3 (rT3)<\/span><\/a><span style=\"font-weight: 400;\"> levels.\u00a0<\/span><\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/header>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-b4c4f85 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b4c4f85\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-b6ffefc\" data-id=\"b6ffefc\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7f5c40e elementor-widget elementor-widget-heading\" data-id=\"7f5c40e\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">What are the symptoms of euthyroid sick syndrome?<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1049e6b elementor-widget elementor-widget-text-editor\" data-id=\"1049e6b\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">The tricky thing about ESS is that it often doesn\u2019t cause any specific symptoms itself. This is because the symptoms you might experience are more likely due to the underlying condition that triggers the ESS. For example, if you have ESS due to pneumonia, you\u2019ll likely feel fatigued and short of breath because of the pneumonia, not the ESS.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3ab31d1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3ab31d1\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-dc52a7e\" data-id=\"dc52a7e\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-be69efa elementor-widget elementor-widget-heading\" data-id=\"be69efa\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">How is euthyroid sick syndrome diagnosed?<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5caca05 elementor-widget elementor-widget-text-editor\" data-id=\"5caca05\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">The key to diagnosing ESS, and essentially differentiating it from an actual thyroid gland disorder, lies in understanding the bigger picture. However, drawing this distinction can be challenging, especially in patients with a critical or chronic illness. This is because the effects of various <\/span><a href=\"https:\/\/www.sciencedirect.com\/topics\/pharmacology-toxicology-and-pharmaceutical-science\/euthyroid-sick-syndrome#:~:text=Thyroid%20function%20tests%20are%20notoriously,dose%20corticosteroids%20can%20suppress%20TSH.\"><span style=\"font-weight: 400;\">medications and treatments<\/span><\/a><span style=\"font-weight: 400;\"> in hospital settings can complicate the interpretation of thyroid function tests.<\/span><\/p><p><span style=\"font-weight: 400;\">In order to accurately diagnose ESS, your doctor will consider your medical history, symptoms (in relation to any underlying illnesses you might have), and your thyroid function test results. Say your rT3 levels are high and thyroid hormone levels are low (especially T3), but your TSH (thyroid-stimulating hormone) levels are normal or only slightly elevated. Then it\u2019s likely that you have ESS.<\/span><\/p><p><span style=\"font-weight: 400;\">Sometimes, though, a <\/span><b>thyroid ultrasound<\/b><span style=\"font-weight: 400;\"> may be needed to distinguish between ESS and hyperthyroidism. Hyperthyroidism is characterized by decreased levels of TSH and increased levels of FT4, and this hormonal pattern can sometimes be observed in ESS. In this case, a thyroid ultrasound helps by showing changes in the thyroid gland itself that are characteristic of hyperthyroidism, such as increased blood flow or nodules, which would not typically be present in ESS.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2decb81 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2decb81\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-2c388d0\" data-id=\"2c388d0\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-006989e elementor-widget elementor-widget-heading\" data-id=\"006989e\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">How is euthyroid sick syndrome treated?\n<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e8b364b elementor-widget elementor-widget-text-editor\" data-id=\"e8b364b\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">The good news is that ESS itself doesn\u2019t require specific treatment. The focus is on treating the underlying illness that caused it. As you recover from that illness, your thyroid hormone levels should naturally return to normal.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-892d91d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"892d91d\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3de9bb6\" data-id=\"3de9bb6\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-da0ad90 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"da0ad90\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a4ccef8 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a4ccef8\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-fb7fdc0\" data-id=\"fb7fdc0\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d30b129 elementor-widget elementor-widget-heading\" data-id=\"d30b129\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Key takeaways<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-f86c422 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f86c422\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-688e010\" data-id=\"688e010\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-dafe8ec elementor-widget elementor-widget-text-editor\" data-id=\"dafe8ec\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Euthyroid sick syndrome is a condition where low thyroid hormone levels are caused by an underlying illness, not a problem with the thyroid gland itself.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It often doesn\u2019t cause its own symptoms, and the symptoms you experience are more likely due to the underlying illness.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">There\u2019s no specific treatment for euthyroid sick syndrome, but addressing the underlying illness should resolve the thyroid hormone imbalance.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The understanding of euthyroid sick syndrome helps healthcare providers to avoid unnecessary interventions in an attempt to re-normalize thyroid hormone levels.<\/span><\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>\u00a9Freepik The thyroid is a small, butterfly-shaped gland located at the base of your neck. It plays an important role in the body\u2019s metabolism by producing and releasing hormones, mainly thyroxine (T4) and triiodothyronine (T3). These hormones influence how quickly your body uses and stores energy. They also impact various bodily functions including heart rate, [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":12906,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[49,36],"tags":[],"class_list":["post-12905","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-other","category-thyroid-conditions"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is Euthyroid Sick Syndrome?<\/title>\n<meta name=\"description\" content=\"Euthyroid sick syndrome is a condition where low thyroid hormone levels are caused by an underlying illness.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.thyforlife.com\/euthyroid-sick-syndrome\/\" \/>\n<meta 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