Hormone Health Hub: Expert Insights on Testing, Balance & Better Living — Neurotransmitter Test

Melatonin is far more than a sleep hormone. As a potent antioxidant, anti-inflammatory agent, and immune modulator, melatonin plays a critical role in protecting against oxidative stress, suppressing harmful inflammatory pathways, and supporting the body’s defence against viral infection. Melatonin production declines progressively with age — a pattern that mirrors the increased vulnerability to severe illness seen in older adults. This article explores the science behind melatonin’s immune and anti-inflammatory functions, the relationship between melatonin decline and age-related disease risk, how to support melatonin production naturally, and how at-home testing can confirm whether your melatonin levels are adequate.

Neurotransmitter testing is one of the most powerful functional assessment tools available — but it requires a nuanced approach to interpretation. In this clinical overview, Dr. Kate Placzek of ZRT Laboratory outlines the key fundamentals every practitioner needs before reading a neurotransmitter report: from understanding patterns over numbers and treatment sequencing, to the clinical significance of low serotonin on SSRIs, GABA’s peripheral mechanisms, and when to run a diurnal catecholamine assessment.

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.

Prostate cancer takes years to develop from a normal cell to a detectable tumour — which means there is a meaningful window for prevention. Three key risk factors are both testable and modifiable: BPA exposure, arsenic accumulation, and catechol oestrogen imbalance. This article explains how each one works and what men can do about it.

Perimenopause is far more than a reproductive transition — it is fundamentally neurological. As oestradiol declines, the brain’s bioenergetic system becomes compromised, neurotransmitter balance shifts, and the thermoneutral zone narrows, giving rise to hot flashes, mood instability, memory changes and sleep disruption. This article explores the neuroscience behind the menopausal transition and why hormone replacement therapy — timed correctly — may be the most effective intervention.