The 9 Hallmarks of Aging
The 9 biological mechanisms of aging, identified by research. Understanding them is knowing where to act.

Genomic instability
Protecting the integrity of your genetic blueprint.
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Telomere attrition
The biological clock written at the tip of your chromosomes.
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Epigenetic alterations
Your genes do not change. How they are read does.
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Loss of proteostasis
The cellular housekeeping that slows down with age.
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Deregulated nutrient sensing
The sensors that decide whether your body stores or repairs.
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Mitochondrial dysfunction
Your power plants, and what wears them out.
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Cellular senescence
The cells that stop dividing but refuse to leave.
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Stem cell exhaustion
The reserve that repairs your tissues, and how it thins out.
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Altered intercellular communication
When cells stop understanding each other.
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