Hormone Health Hub: Expert Insights on Testing, Balance & Better Living — #Selenium

The thyroid gland may be small, but it plays a monumental role in maintaining your body’s health. Located in the neck and shaped like a butterfly, this endocrine powerhouse regulates everything from metabolism to mood through the hormones it produces. Yet, thyroid hormone imbalances often go unnoticed—despite affecting millions. According to the American Thyroid Association, more than 12% of the U.S. population will develop a thyroid condition during their lifetime, and up to 60% of those affected may not even know it. These disorders are frequently misdiagnosed or overlooked, often dismissed as symptoms of stress, ageing, or other common conditions....

ZRT offers a unique approach to neurotransmitter testing, analyzing 14 key neurotransmitters and metabolites to provide a comprehensive view of your neurochemistry. Unlike other labs, ZRT combines parent neurotransmitter levels with their downstream metabolites, ensuring accurate results and more effective treatment plans. This comprehensive testing, available exclusively through ZRT, helps identify systemic patterns that may be contributing to your health issues.

Neurotransmitter imbalances are often linked to common conditions like anxiety, depression, ADHD, and PMS. ZRT’s testing also examines the influence of hormones, heavy metals, and nutritional elements, offering a more complete and precise understanding of your health.

For the most accurate and convenient testing, ZRT's dried urine method allows for discreet, at-home collection—no need for all-day urine collection. The dried strips are easy to mail back, providing a hassle-free way to assess your neurotransmitter levels.

To explore all neurotransmitter tests, click the link below.

Heavy metal exposure can affect a child's development, immune function, and long-term health. At-home heavy metals testing using dried blood and urine spots helps parents detect toxic metals like arsenic, mercury, and cadmium, while also assessing essential elements such as iodine, selenium, and zinc — enabling early intervention and tailored nutritional support.

Selenium is an essential trace element with a critical role in immune function, antioxidant defence, and thyroid health. Research links selenium deficiency to increased viral replication, more severe infection outcomes, and a higher likelihood of viral mutation into new strains. Heavy metal exposure from mercury and arsenic can further deplete selenium, compounding the risk. This article explains the science behind selenium’s role in viral protection, the geographical link between selenium-deficient soils and emerging infectious diseases, and how at-home ICP-MS testing can confirm whether your selenium levels are adequate.

Heavy metals like mercury, arsenic, and cadmium can silently disrupt brain chemistry, mood, and cognition — while nutrient deficiencies in iodine, selenium, and lithium compound the damage. Learn how element testing reveals what's really affecting your mental health.