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NeuroscienceTwo distinct neural pathways may make opioids like fentanyl so addictive
A study in mice looked at how feelings of reward and withdrawal that opioids trigger play out in two separate circuits in the brain.
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PhysicsHere’s how ice may get so slippery
Ice’s weirdly slick exterior might originate from the boundaries between two different types of ice that form on the surface of frozen water.
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Health & MedicineHuman body lice could harbor the plague and spread it through biting
Rats and fleas previously got all the blame, but humans’ own parasites could be involved.
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Particle PhysicsThe neutrino’s quantum fuzziness is beginning to come into focus
An experiment studying the neutrino’s “wave packet” sets a limit on the uncertainty of the subatomic particle’s position.