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Biotechnology

How scientists want to make you young again

Research labs are pursuing technology to “reprogram” aging bodies back to youth.

Inside the billion-dollar meeting for the mega-rich who want to live forever

Hope, hype, and self-experimentation collided at an exclusive conference for ultra-rich investors who want to extend their lives past 100. I went along for the ride.

Human brain cells transplanted into baby rats’ brains grow and form connections

When lab-grown clumps of human neurons are transplanted into newborn rats, they grow with the animals. The research raises some tricky ethical questions.

The debate over whether aging is a disease rages on

In its latest catalogue of health conditions, the World Health Organization almost equated old age with disease. Then it backed off.

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Illustration by Rose Wong

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