Hormone Health Hub: Expert Insights on Testing, Balance & Better Living — Nervous System

Stress, Cortisol, and the Hormonal Loop of Anxiety When the body perceives danger, the brain activates the hypothalamus-pituitary-adrenal (HPA) axis — an internal alarm that releases cortisol, the body’s primary stress hormone. For short-term challenges, cortisol is beneficial. It sharpens focus, boosts energy, and prepares muscles for quick action — the classic “fight or flight” response that once ensured survival. When Stress Becomes Chronic Trouble begins when stress never switches off. Prolonged cortisol exposure interferes with healthy brain function, damaging neurons in the hippocampus (responsible for memory) and the prefrontal cortex (which governs decision-making and emotional control). As these areas...

How Neurotransmitter Imbalances Affect Health. When neurotransmitters are out of balance, your brain and body may become over- or under-stimulated. Common scenarios include: Anxiety & Depression, Chronic Fatigue, Impulsivity, Insomnia, PMS & PMDD..

Insomnia affects roughly 50% of all adults — and while sleep hygiene is important, herbal nervines offer a powerful, evidence-backed complement to any sleep support plan. Dr. Sherry LaBeck of ZRT Laboratory reviews 9 key botanical remedies for sleep disturbances and nervous system support, from the classic sedative valerian to the gentle tonic oatstraw, explaining the mechanisms behind each herb and the research supporting their use.

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.