Longevity.

Aging, senescence, and the long arithmetic of human time.

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Jonas Bremmer

The slowest field in biology, in a hurry. We cover the science of ageing and the strange new industries it has started.

Topics in longevity 03 ongoing

Topic · 01 1 essay

Supporting Biochemistry

NAD+, autophagy, mTOR, senolytics — the molecular knobs and what we know about turning them.

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Topic · 02 1 essay

Lifestyle

Sleep, exercise, fasting, sun. The boring interventions that actually have data behind them.

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Topic · 03 —

Longevity Research

The labs, the clinical trials, the strange new industries the field has started.

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Latest in lifestyle

May 31, 2026 · 8 min read

The Science of Sauna: Heat Shock Proteins, Longevity, and Why Infrared Is Not the Same Thing

Sitting in a hot sauna for 30 minutes can increase heat shock proteins — your cells' molecular chaperones — by 50%. Those proteins stay elevated for 48 hours, preventing the kind of protein misfoldin…

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Machine learning, deep learning, research, tools, and trends.

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The body, its diseases, the medicine, and the institutions around them.

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Depression, anxiety, trauma, therapy, psychiatry, and what we now know about caring for the mind.

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Cells, evolution, ecology, and biotechnology.

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Cognition, attention, and the inner life of the thinker.

Genetics

Genomics, gene editing, CRISPR, heritability, and beyond.

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Cosmology, particles, condensed matter, and first principles.

Book Review

Long reads on long books — fiction and nonfiction, considered slowly.