ADRENAL HEALTH & THE HPA AXIS

The Stress Hormone System That Is Destroying You.

The hypothalamic-pituitary-adrenal (HPA) axis governs the body's response to all forms of stress — psychological, inflammatory, environmental, and nutritional. Chronic activation drives cortisol dysregulation that suppresses immune function, disrupts the gut barrier, impairs thyroid conversion, breaks down muscle tissue, causes bone loss, and destroys sleep architecture. Adrenal insufficiency — dismissed by most NHS practitioners because it falls below Addison's disease threshold — is a spectrum condition that manifests as pervasive fatigue, poor stress tolerance, salt cravings, and morning grogginess in millions of UK adults.