Hormone Health Hub: Expert Insights on Testing, Balance & Better Living — hypothalamic pituitary adrenal

The contraceptive pill is one of the most widely used medications in the world — but its effects on mood, brain chemistry and hormone balance are still poorly understood. This article explores how synthetic hormones disrupt oestrogen, progesterone, cortisol and neurotransmitters, and why some women are far more vulnerable to depression and anxiety as a result.

The Cortisol Awakening Response (CAR) — the 50% surge in cortisol that occurs in the first 30 minutes after waking — is one of the most sensitive markers of HPA axis health. Discover how CAR differs from the standard diurnal cortisol curve, which conditions are linked to blunted or exaggerated CAR, and how three timed morning saliva samples can reveal adrenal function in ways a single cortisol test cannot.

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. 

Low libido in perimenopause is rarely just one thing — it’s a mosaic of hormonal, physical and lifestyle factors. From falling oestrogen and DHEA to thyroid dysfunction and metabolic syndrome, discover what’s really driving the loss of desire and how hormone testing can help.

DHEA and DHEA-S are the most abundant steroid hormones in the body and play a critical role in brain health, mood regulation, and cognitive function. This article explains the biochemical distinction between the two, how they act as neurosteroids, and why measuring DHEA-S is the gold standard for assessing adrenocortical activity.