Injecting old mice with young blood rejuvenates them

No, this isn't some viral marketing for True Blood...I think. Some researchers at Stanford have just published a study that claims that when blood from a young mouse was injected into an old mouse that old mouse received a "rejuvenation effect."

What's that mean? Well, "it began producing more neurons, firing more activity across synapses, and even suffered less inflammation." Weirdly, it also worked in reverse, with young mice who received old blood had the opposite effect, getting elderly attributes from it.

So, what does that mean? Will we all be enjoying longer lives thanks to baby-blood injections? Probably not, although scientists are fascinated by the discovery that the brains degeneration with age may be somewhat due to blood from elsewhere in the body instead of a natural slowdown in neuron production. It'll be interesting to see what comes of this.

Stanford via Pop Sci

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