Section

Longevity

What ageing is, and what science can and cannot yet do about it.

LongevityMetabolism3 Oct 2026

The trial where people ate less for two years

Caloric restriction is the most reliable way to extend lifespan in laboratory animals. The human experiment ran for two years and measured something else.

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LongevityCell Biology29 Aug 2026

The cells that stop dividing but refuse to leave

Senescence is one of the most studied ideas in the biology of ageing. Here is what the term actually means, and where the honest edges of the science are.

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