
Vitrification may extend human lifespan
Vitrification may extend human lifespan, but only in a narrow, technical sense. It is not a promise of renewal.
Magazine section
10 essays examining this part of cryonics history, practice, evidence, or possible futures.

Vitrification may extend human lifespan, but only in a narrow, technical sense. It is not a promise of renewal.

Vitrification halts aging by preserving cells. That is the plain answer, and it is also the limit of the claim.

Vitrification may extend human lifespan by halting cellular decay.

Vitrification paves the way for healthy longevity because it protects living material from the worst damage that comes with ice.

Vitrification prolongs longevity in aging organisms, but only in a narrow and careful sense.

Vitrification does help aging cells survive better than old-style ice freezing, but the claim needs care.

I wake up with a question that keeps walking through my lab notes like a stubborn gear. Can a large organ be frozen and revived? Not in a flash, not with a single trick. But maybe with a chain of careful steps…

I keep returning to one plain question: what does ice do to a brain?

What is the job of a cryoprotectant? I have asked that question many times, and I keep arriving at the same answer: it is a tool to keep water from turning to ice when things get very cold. Ice is a simple…

I am thinking about ice. Not literal ice on a pond or in a glass of water, but the ice that forms in tissue when a body cools too slowly. It is a quiet, stubborn traveler. It moves through the spaces in a cell…