Hormones & Stress

Alcohol and hormones: even one or two drinks a day raise oestradiol in women and fragment the second half of sleep. What the research shows, and how to test it.

Ashwagandha reliably lowers cortisol in trials, but a lower reading does not always mean less stress. What the evidence supports, and where the cautions sit.

Sudden hives, headaches or food reactions in your 40s? Perimenopause can tip you into histamine excess. How oestrogen drives it and what testing shows.

Your gut microbiome regulates estrogen through the estrobolome. How gut health shapes hormones, why imbalance can tip either way, and what testing reveals.

Women report poorer sleep and run an earlier body clock than men, with greater health risks across the menstrual cycle, pregnancy and menopause. Here’s why.

‘Adrenal fatigue’ isn’t gland failure — it’s a cortisol-rhythm problem from chronic stress. Symptoms, testing and recovery, from an Adelaide clinician.

Broken sleep in new parents is a sustained physiological stressor. It shifts hormone output, depletes key nutrients, and affects both partners at once.

Independent 2025 research tested consumer wearables against an ECG-grade reference across 536 nights of sleep. The Oura Ring 4 matched it to within 1%.

Balancing estrogen and progesterone in your 30s and 40s. Why falling progesterone, not excess estrogen, is often behind PMS, broken sleep and heavier periods.

Estrogen dominance usually isn’t overproduction. Impaired liver clearance and the gut estrobolome often drive it. How to find the block, and what shifts it.