Blog — hormone regulation

Stress, Cortisol, and the Hormonal Loop of Anxiety When the body perceives danger, the brain activates the hypothalamus-pituitary-adrenal (HPA) axis — an internal alarm that releases cortisol, the body’s primary stress hormone. For short-term challenges, cortisol is beneficial. It sharpens focus, boosts energy, and prepares muscles for quick action — the classic “fight or flight” response that once ensured survival. When Stress Becomes Chronic Trouble begins when stress never switches off. Prolonged cortisol exposure interferes with healthy brain function, damaging neurons in the hippocampus (responsible for memory) and the prefrontal cortex (which governs decision-making and emotional control). As these areas...

Saliva Testing for Hormones: Accurate, Convenient, and At-Home.

Why a Hormone Profile Is Better Than a Single Test. When men experience hormone-related symptoms (like low libido, fatigue, weight gain, or mood changes), it’s rarely just one hormone causing the issue. A simple testosterone check may miss the bigger picture.

Discover how saliva and blood cortisol testing reveal adrenal function and help diagnose stress-related hormone imbalances like fatigue, anxiety, and burnout.

  Hormones play a pivotal role in the intricate dance of human biology, orchestrating various physiological processes that influence our health and well-being. Understanding the science behind hormone testing is crucial for unravelling the mysteries within our bodies. With 25 years of expertise, ZRT Laboratory stands as a beacon in this field, offering innovative and meaningful hormone and wellness testing. Let’s delve into the complexities of hormone testing and explore the various matrices that reveal the secrets of our hormonal balance. The Symphony of Hormones: Endocrine glands, such as the ovaries, testes, thyroid, pituitary, and pancreas, produce hormones that regulate...