Hormone Health Hub: Expert Insights on Testing, Balance & Better Living — perimenopause symptoms

Explore the vital role of estrogen in perimenopause, its impact on mood, sleep, heart and bone health, and the latest research on hormone therapy options.

By Dr. Sherry LaBeck of ZRT Lab Perimenopause is the transition between a woman's reproductive years and menopause, characterized by a decline in estrogen levels, which can lead to physical and emotional symptoms. Understanding the role of estrogen during this phase is essential for managing symptoms and improving the quality of life for women going through this transition. What is Perimenopause? Perimenopause typically begins in a woman's 40s, though some may experience symptoms as early as their mid-30s, which is known as premature menopause. During this phase, the ovaries produce less estrogen until menstruation stops, marking the onset of menopause....

Most people know that drinking enough water is important for health — but far fewer understand the profound connection between hydration and hormones. Oestrogen, progesterone, aldosterone, vasopressin, and even dopamine all play roles in regulating how the body manages fluid. Hormonal fluctuations across the menstrual cycle, perimenopause, and menopause can significantly alter water retention, thirst signalling, and overall hydration status. This guide explains the science behind hydration and hormones, identifies who is most at risk of dehydration, and provides practical, evidence-based strategies for staying optimally hydrated at every life stage.

Saliva hormone testing is one of the most accurate and convenient ways to measure bioavailable hormones — the fraction that is actually active in your body's tissues. Unlike standard blood tests, which measure total hormone levels including protein-bound fractions that cells cannot use, saliva testing captures only the free, unbound hormones that drive real physiological effects. This guide explains how saliva testing works, which hormones it measures, why it is clinically superior for monitoring hormone therapy, and how to choose the right test for your health goals.

Vitex agnus-castus — also known as chasteberry or chaste tree berry — is one of the most widely used botanical remedies for female hormone imbalance. Clinical research supports its use for reducing elevated prolactin, correcting luteal phase progesterone deficiency, alleviating PMS and PMDD symptoms, and managing some symptoms of the menopausal transition. This article reviews the evidence behind Vitex, explains the hormonal mechanisms through which it works, and outlines when it may be an appropriate botanical option for women with menstrual cycle disturbances.