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

Testosterone has long been associated with aggression — but new research is revealing a far more nuanced picture. A study published in Nature Communications, involving ZRT Laboratory, found that a single dose of testosterone significantly increased young men’s preference for luxury, status-enhancing goods. Dr. Kate Placzek explores the neuroendocrine science behind this finding — and what it reveals about testosterone’s role in dopamine, reward and social behaviour.

GABA is the brain's primary inhibitory neurotransmitter — and its balance is critical for restful sleep. This article explores how both low and high GABA levels can disrupt sleep, and why addressing the adrenal stress response is often the key to resolving GABA-related sleep problems.

Your adrenal glands are your body's frontline stress managers — producing cortisol, DHEA and adrenaline to keep you functioning under pressure. But when stress becomes chronic, these glands can fall out of balance, leading to fatigue, weight gain, insomnia, anxiety and more. Discover how adrenal hormones work, what imbalance looks like, and 10 evidence-based tips to restore balance.

Stress is not just a feeling — it triggers a cascade of neurochemical signals that activate the HPA axis. This article explores how neurotransmitters like serotonin, dopamine, GABA, and norepinephrine interact with the stress response, and why mood disorders such as anxiety and depression are so closely linked to HPA axis dysfunction.

While working or exercising, do you sweat for an extended period of time? Are you constantly exposed to a hot or humid environment? Do you take pre or post workout supplements and/or a multivitamin to replenish key nutrients lost during exercise? Are you aware that excessive perspiration has been linked to iodine deficiency? How Iodine Powers Thyroid Function Thyroid hormones, thyroxine (T4) and triiodothyronine (T3), are manufactured in the thyroid gland using iodine. Iodine consumed in the diet circulates in the bloodstream and is selectively taken up by the thyroid gland where, through a series of complex biochemical reactions, it...