Cancer cells have a new trick: they fake death to survive therapy. A UC San Diego study shows how “persister” cells use a faint death signal to reboot—and why blocking it could change how we prevent relapse.

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What if a simple blood test could forecast when Alzheimer’s symptoms might begin—years before they appear? A new study in Nature Medicine suggests that science is getting uncomfortably close to answering that question. Here’s what it means, and why it quietly changes how we think about time, health, and living well.

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