What Is IGF-1? The Longevity Biomarker Nobody Tests
What is IGF-1 and why does it matter for longevity? Learn what your IGF-1 level means, optimal ranges by age, and what the science actually says.
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What Is Klotho? The Longevity Protein Explained
What is klotho? Learn how this longevity protein affects aging, brain health, and kidneys — and what actually raises your klotho levels.
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Vitamin D and Aging: What the Science Says in 2026
Vitamin D and aging: does optimizing your levels actually slow aging? We review the human evidence, ideal dosing, and what’s still unproven in 2026.
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The 12 Hallmarks of Aging Explained (2026 Guide)
The hallmarks of aging explained clearly: what causes aging at the cellular level, what the science says, and which hallmarks you can actually target.
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What Are Epigenetic Clocks? The Science of Measuring Age
Epigenetic clocks aging science explained — what they measure, how accurate they are, and what you can actually do about your biological age in 2026.
