Cortisol: a hormone to lower or a rhythm to protect?
Cortisol is demonised on social media, yet it is a vital hormone with a precise daily rhythm. Its roles, genuine excesses and deficiencies, tests, everyday habits and...
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From ingredients to everyday habits: guidance for exploring longevity with curiosity, precision and perspective.
Zinc: bisglycinate, picolinate or gluconate — what is the difference?
Bisglycinate, picolinate, gluconate, citrate or oxide: what human zinc absorption studies show, EFSA requirements, the best food sources and the limits to respect to avoid excess intake.
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Insulin resistance: mechanisms, tests and proven approaches
Why cells respond less well to insulin, how it is assessed, which approaches have proved effective in trials, and what berberine, magnesium, inositol, cinnamon and chromium really...
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Bacopa monnieri and memory: what do the trials really show?
Memory, time to effect, doses and tolerability: what randomised trials and meta-analyses actually say about bacopa (Bacopa monnieri), and what they do not yet tell us.
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Rhodiola rosea: fatigue, stress, doses and precautions
An “adaptogenic” plant from cold mountains, rhodiola has EMA-recognised traditional use in medicines but small, contradictory trials. Doses, time to effect, interactions, liver and product quality: what...
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Selenium: roles, requirements, foods and the risks of excess
Selenium is an essential trace element, but the margin between requirements and excess is narrow. Roles, requirements, foods, deficiency, selenosis and major trials, with the figures.
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Mitochondria: roles, energy production and the effects of age
Mitochondria make most of our cells' ATP. Structure, DNA, energy production step by step, the effects of age and what human trials suggest helps maintain them.
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Coenzyme Q10: ubiquinone or ubiquinol? Roles, forms and precautions
Made by the body, coenzyme Q10 exists in two forms: ubiquinone and ubiquinol. What studies show about absorption, statins, the heart, migraine and fertility, and the precautions...
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Black radish: are its benefits for the liver proven?
Black radish is said to “drain” the liver. Composition, sulphur compounds, laboratory, animal and human studies, ways to eat it and precautions: what science actually knows about...
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L-carnitine: does it really help with weight loss? Roles, exercise and precautions
L-carnitine carries fat to mitochondria, but swallowing more does not make it melt away. Its actual role, weight and exercise studies, forms, TMAO and precautions.
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Creatine: effects, dosage and myths, separating fact from fiction
Strength, lean mass, daily dosing or loading, kidneys, hair, water retention and the brain: what studies and health authorities actually say about creatine.
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Quercetin: foods, absorption and the state of research
Capers, red onion and kale: where to find quercetin, why it is poorly absorbed and what trials actually show, from blood pressure to senescent cells.
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