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Most recent 10 articles

The real ‘paleo diet’ may have been full of toxic metals

You’ll be healthier if you ate as your ancestors did. At least that’s the promise of some modern fads such as the “caveman” or paleo diet—characterized by avoiding processed food and grains and only eating things like meat, fish, and seeds. But a new study suggests the food some early humans i...

Dogs hear words the same way we do

Say “sit!” to your dog, and—if he’s a good boy—he’ll likely plant his rump on the floor. But would he respond correctly if the word were spoken by a stranger, or someone with a thick accent? A new study shows he will, suggesting dogs perceive spoken words in a sophisticated way long thought un...

Mosquitoes armed with bacteria beat back dengue virus

NATIONAL HARBOR, MARYLAND—In a handful of cities around the world, mosquitoes have been armed with a microscopic weapon against disease. The bacterium Wolbachia pipientis blocks the insects’ ability to spread fearsome viruses such as dengue, Zika, and chikungunya. Since 2011, researchers have ...

High-performance subambient radiative cooling enabled by optically selective and thermally insulating polyethylene aerogel

Recent progress in passive radiative cooling technologies has substantially improved cooling performance under direct sunlight. Yet, experimental demonstrations of daytime radiative cooling still severely underperform in comparison with the theoretical potential due to considerable solar absor...

Kids these days: Why the youth of today seem lacking

In five preregistered studies, we assess people’s tendency to believe “kids these days” are deficient relative to those of previous generations. Across three traits, American adults (N=3,458; Mage = 33-51 years) believe today’s youth are in decline; however, these perceptions are associated wi...

Pre-conception maternal helminth infection transfers via nursing long-lasting cellular immunity against helminths to offspring

Maternal immune transfer is the most significant source of protection from early-life infection, but whether maternal transfer of immunity by nursing permanently alters offspring immunity is poorly understood. Here, we identify maternal immune imprinting of offspring nursed by mothers who had ...

Genetically engineered immune cells wipe out lupus in mice

Lupus can be a stubborn disease to treat. Although many struck by the autoimmune condition live relatively normal lives, some suffer from kidney failure, blood clots, and other complications that can be deadly. Now, scientists have found that a novel treatment that wipes out the immune system’...