To date, at least 21 American service members have been killed and hundreds more wounded. By Nicholas Slayton, James Clark, Matt White, Patty Nieberg, Jeff Schogol Updated 16 Hours Ago By Patty ...

Languages often co-express related meanings, either reusing words or combining parts of words. It is poorly understood when each strategy is favoured. Across 1,982 languages, Brochhagen et al. find ...

Adults with attention deficit hyperactivity disorder (ADHD or ADD) lead anxious lives. The nature of ADHD often makes day-to-day life stressful, creating situations and environments fraught with ...

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A satisfying congruence between genetics and cell-biology findings, and experiments at altitude with a rotating device that measures radiant energy, in this week’s peek at Nature’s archive.