2021’s busiest researcher took time out this month to update progress on epigenetic clocks:

Hallmarks of aging aren’t all associated with epigenetic aging.

Interventions that increase cellular lifespan aren’t all associated with epigenetic aging.

Many of his authored or coauthored 2021 papers developed human / mammalian species relative-age epigenetic clocks.

Relative-age epigenetic clocks better predict human results from animal testing.

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Previously curated papers that were mentioned or relevant included:

• Your pet’s biological age;
• A bat epigenetic clock;
• Smoke and die early, while your twin lives on;
• The next phase of reversing aging and immunosenescent trends;
• A rejuvenation therapy and sulforaphane;
• What drives cellular aging?;
• The epigenetic clock now includes skin;
• The epigenetic clock theory of aging; and
• Using an epigenetic clock to distinguish cellular aging from senescence.