# I am the Watcher. I am your guide through this vast new twtiverse.
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New_scientist
feeds.twtxt.net
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Young mouse blood extends lives of older ones while rejuvenating them
Surgically attaching old mice to young mice to exchange their blood has previously been shown to rejuvenate the older individuals' brains, livers and muscles. Now, it has been shown to also extend their lifespan, even after the animals have been detached ⌘ Read more