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Ferritin: Optimal Levels and How to Raise Low Iron Safely

What ferritin measures, typical reference ranges, and how to raise low iron safely - without self-supplementing. Educational guide; discuss results with your doctor.

Blood Biomarkers Every High Performer Should Track

A plain-English guide to the blood biomarkers high performers should track - what each one means, typical reference ranges, and when to talk to your doctor.

Sleep Supplements for High Performers: The Evidence-Based Stack (2026)

Magnesium glycinate, glycine, low-dose melatonin: the compound-by-compound breakdown of what the research actually says. No gummies, no guesswork.

5-HTP for Mood and Sleep: The Tryptophan Precursor Case (and the SSRI Risk You Must Read First)

5-HTP at 100 to 300mg/day: the serotonin precursor mechanism, the Birdsall 1998 review, and the CRITICAL serotonin syndrome risk if combined with SSRIs.

Maca for Men 40+: What the Andean Root Actually Does (and What It Does Not)

Maca at 1500 to 3000mg/day: what Gonzales 2002 actually showed for sexual desire, why it is NOT a testosterone booster, and the honest evidence ceiling.

Berberine vs Metformin: Glucose Metabolism, AMPK, and What the Evidence Actually Shows for Aging Executives

Berberine activates AMPK similarly to metformin. The Dong 2012 meta-analysis, GI side effect mitigation, and the 12-week cycling rationale explained.