Medical research

Will revitalizing old blood slow aging?

Young blood has a rejuvenating effect when infused into older bodies, according to recent research: Aging hearts beat stronger, muscles become stronger, and thinking becomes sharper.

Other

How long can a healthy human live?

The death of the world's oldest person at the age of 118 has reignited a debate that has divided scientists for centuries: is there a limit on how long a healthy human can live?

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