[ExI] Old hearts age backwards:

[John Clark]

*The following  is from today's issue of the journal Nature: *


*"What happens to organs when they are transplanted? Hearts from young
donors age rapidly in the bodies of older recipients, and older hearts are
rejuvenated inside young people"*

*Old hearts age backwards: transplanted organs adjust to host's biological
age* <https://www.nature.com/articles/d41586-026-03043-w>

*John K Clark*
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