In this exclusive subscriber-only eBook, you’ll learn about a new method that scientists have uncovered to look at the ways our bodies are aging.

by  Jessica Hamzelou October 14, 2025

Table of Contents:

• Clocks kick off
• Black-box clocks
• How to be young again
• Dogs and dolphins
• When young meets old

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• How aging clocks can help us understand why we age—and if we can reverse it
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