Today's episode covers groundbreaking research on why Alzheimer's targets memory circuits first, with Virginia Tech scientists identifying mitochondrial stress in the entorhinal cortex as a key factor. We explore exciting medical advances including a method to eliminate dormant breast cancer cells and a constipation drug showing promise for chronic kidney disease treatment. Space enthusiasts will learn about the first direct photograph of a forming planet and surprising findings about Saturn's moon Enceladus that challenge assumptions about potential life. Plus, revolutionary AI chip technology using light instead of electricity promises 100-times greater efficiency, while sleep research reveals the brain circuits controlling growth hormone release.

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