Longevity Science
Why do we age at all? Evolution has no incentive to keep you healthy past reproductive age. Modern longevity science is mapping the molecular mechanisms behind decline — and finding targets that might slow it down.
Longevity Science
The Biology of Why We Age—And Whether We Have to
The Series
The Coherence Frame
Aging is a loss of coherence. Young systems maintain themselves—repairing damage, clearing waste, preserving information. Aged systems lose this capacity. The feedback loops that kept things stable begin to fail. Entropy accumulates. Longevity interventions, at their core, are attempts to restore coherence—to help biological systems maintain themselves longer. Whether through removing senescent cells, restoring epigenetic information, or mimicking the signals of caloric restriction, the goal is the same: keep the system self-organizing for longer. The question isn't whether we'll extend human lifespan. We already have—dramatically—through public health and medicine. The question is whether we can extend healthspan: the years of vitality, not just the years of breathing. That's where the frontier lies.
Begin with The Nine Hallmarks of Aging, the framework that changed how we understand biological decline.
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