Hormone Health Hub: Expert Insights on Testing, Balance & Better Living — serotonin and stress

Chronic stress, fatigue, anxiety, and poor sleep may be signs of cortisol imbalance. Learn how stress and sleep hormone testing — including the Cortisol Awakening Response (CAR) and diurnal cortisol rhythm — can identify HPA axis dysfunction and help uncover the root cause of burnout, energy crashes, and disrupted sleep.

Weight loss failure is rarely just about willpower or diet — hormones are almost always involved. In this Q&A, Dr. Alyssa Burns-Hill of ZRT Laboratory tackles the most common questions from people struggling to lose weight despite their best efforts: from thyroid interference by the contraceptive pill and stress-driven cortisol cravings, to estrogen-reducing supplements, natural progesterone for menopause, and why 5-HTP can be a game-changer for mood, sleep and comfort eating.