Humans
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EnvironmentWestern wildfire smoke poses health risks from coast to coast
As wildfires become more common, their hazardous smoke is sending East Coast residents — especially children — to emergency rooms.
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LifeYour face is mighty mite-y. And that’s a good thing
Tiny face mites live in our pores, getting food and shelter in return for eating our skin waste. A new study shows they can’t live without us.
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ClimateLet’s learn about heat waves
Heat waves often occur when a high-pressure system lingers over a certain area. These deadly events are on the rise due to climate change.
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PsychologyScientists Say: Trauma
No one experiences trauma the same way. Its effects can be physical or emotional. Immediate or delayed. Brief or long-lasting.
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Health & MedicineSix months in space causes 10 years’ worth of bone loss
Even a year after recovery back on Earth, astronauts who’d been in space six months or more still had bone loss equal to a decade of aging.
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Health & MedicineTeen arm wrestlers face risk of an unusual elbow break
The pointy part of the inner elbow can break in arm wrestling, especially among teens whose bones are still growing.
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Health & MedicineTo test for COVID-19, a dog’s nose can match a nose swab
Dogs can sniff out COVID-19 cases as well as PCR tests can — and are better at ID’ing cases having no symptoms, a new study finds.
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BrainWhy teens can’t help tuning out mom’s voice
Teens often tune out what their mom is saying. Normal brain changes during adolescence could explain why, new research shows.
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Health & MedicineJoggers run at an energy-efficient pace, new data show
Fitness trackers and treadmill tests show that a runner’s speed tends to vary little, regardless of the distance they run.
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FossilsBright-colored feathers may have topped pterosaurs’ heads
Fossil remains of a flying reptile hint that their vibrant crests may have originated 250 million years ago in a common ancestor with dinosaurs.
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HumansScientists Say: Denisovan
The Denisovans were a recently discovered population of ancient hominids.
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HumansLet’s learn about sleep
Sleep is key for health and wellbeing — but early school start times and screen time make it harder for teens to get shuteye.