News
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Science & SocietyPlacement of marine reserves is key
A study finds that focusing on the heaviest-fished areas can help meet conservation goals.
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Health & MedicineOlder adults’ brains boosted by more, not better, sleep
A study finds that older adults perform better on a learning and memory task if they have slept more, while uninterrupted rest matters more for younger folks.
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Health & MedicineBrain tells signs from pantomime
Different brain areas light up when deaf people use American Sign Language than when they gesture.
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Health & MedicineRapid HIV treatment could slow growing TB rates
Widespread yearly testing and immediate treatment with antiretroviral drugs could avert more than 6 million tuberculosis cases in Africa, a new model finds.