Old Pill, New Trick

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One team of researchers may has found a promising lead in the fight to cure or prevent Alzheimer's. And another team is helping us understand how Hydras regrow their heads.

Hosted by: Hank Green

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Sources:
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Images:
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https://commons.wikimedia.org/wiki/File:Sildenafil-from-xtal-3D-balls.png
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https://commons.wikimedia.org/wiki/File:Histopathology_of_neurofibrillary_tangles_in_Alzheimer%27s_disease_-_annotated.jpg
https://commons.wikimedia.org/wiki/File:Astrocytes_surrounding_amyloid_plaques_III.tif
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https://commons.wikimedia.org/wiki/File:Hydra_Budding.svg
https://www.istockphoto.com/photo/hydra-oligactis-budding-gm157645665-13987147
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https://www.istockphoto.com/photo/hydra-is-a-genus-of-small-fresh-water-animals-of-the-phylum-cnidaria-and-class-gm1006017274-271553378
https://www.eurekalert.org/multimedia/809856