Epigenetic clocks use methylation patterns at specific DNA sites to estimate biological age. The newest clocks are built to track rate of aging and health-outcome risk, not just chronological age.
~3-4 yrstypical clock error vs chronological age
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Explore the clock generations
Tap each clock to learn its strengths.
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Try in app
Estimate the accuracy
How many years of error do modern epigenetic clocks typically have?
This step is hands-on. Open the Thier app to try the full interaction.
Fact
How to interpret your own clock result
Don't fixate on the absolute number. The ±2-3 year measurement noise plus first-generation clock biases mean a single test isn't a verdict. What matters is the TREND across multiple readings: if your DunedinPACE drops from 1.05 (aging slightly fast) to 0.95 (aging slightly slow) after 12 months of intervention, that's a real signal. Test once, intervene 6-12 months, retest. The differential is what tells you something.
Trend > valueinterpret your epigenetic clock
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Choosing a clock for YOUR question
Different clocks answer different questions. Tap each to see when to use it.
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Takeaway
Key Takeaway
Epigenetic clocks are the most accurate measure of biological age. DunedinPACE is the gold standard for tracking whether interventions are actually slowing your aging.
Track your progress
Read the cards above, then mark this lesson complete to track your progress.