Hormone Health Hub: Expert Insights on Testing, Balance & Better Living — Premenstrual syndrome

Heavy periods affect millions of women, yet the underlying causes are frequently misunderstood or left unaddressed. From oestrogen and progesterone imbalances to structural issues such as fibroids and adenomyosis, there are several well-established reasons why menstrual bleeding can become excessive. This article explains the physiology of the menstrual cycle, the most common causes of heavy periods, and how hormone testing can help identify what is driving your symptoms — so you can take informed steps towards better menstrual health.

By Dr. Kate Placzek, ZRT Laboratory Premenstrual Dysphoric Disorder (PMDD) is a severe, cyclical condition that affects an estimated 3–8% of menstruating women. Unlike typical PMS, PMDD causes debilitating mood and physical symptoms in the week before menstruation — symptoms severe enough to interfere with work, relationships, and daily life. If you've been told your symptoms are "just PMS" but they feel far more intense, this guide explains what's really happening hormonally and what you can do about it. Is PMDD Worse than PMS? Yes — Significantly. PMS is common. PMDD is a different level entirely. While PMS involves manageable...

Explore how hormones fluctuate through every stage of the menstrual cycle — from menarche to menopause — and discover how estrogen, progesterone, LH, and FSH influence mood, energy, fertility, PMS, migraines, weight changes, and overall women’s health. Learn how menstrual cycle mapping can help identify hormone imbalances and provide deeper insight into symptoms throughout the month.

Explore the complex relationship between hormonal contraception, mood changes, and depression risk — particularly in teenagers and women sensitive to hormonal fluctuations. Learn the difference between natural progesterone and synthetic progestins, how estrogen and progesterone influence neurotransmitters like serotonin and GABA, and why some women may experience depressive symptoms, anxiety, or emotional changes while using hormonal contraceptives. Discover how hormone and neurotransmitter testing may help provide deeper insight into mood-related symptoms linked to birth control use. 

Explore the powerful connection between hormones, neurotransmitters, and mood in PMS and PMDD. Learn how progesterone, allopregnanolone, GABA, serotonin, cortisol, and estrogen fluctuations throughout the menstrual cycle may contribute to anxiety, irritability, depression, fatigue, sleep disturbances, and severe premenstrual symptoms. Discover how hormone and neurotransmitter testing can help identify underlying imbalances linked to menstrual mood disorders.