Humans
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Health & Medicine
Scientists Say: Infection
Infections range from mild illnesses, such as the common cold, to deadly diseases, such as rabies.
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Humans
Long-lost ‘smellscapes’ are wafting from artifacts and old texts
By studying and reviving old scents, archaeologists are finding new clues about how ancient Egyptians experienced their world through smell.
By Bruce Bower -
Humans
Eight billion people now live on Earth — a new record
The global population hit this milestone on November 15, according to an estimate from the United Nations.
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Earth
Analyze This: Wildfires are pumping more pollution into U.S. skies
Researchers wanted to study the health effects of wildfire smoke. But they realized they didn’t know where it was and how much exposure people had.
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Chemistry
Explainer: What is a hydrogel?
These unusual materials have a host of unusual properties. You can even make a starch-infused version in your kitchen.
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Environment
‘Forever’ chemicals show up in students’ school uniforms
Researchers found PFAS “forever chemicals” in kids’ school uniforms and other clothing. Studies have linked these compounds to health risks.
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Health & Medicine
Should we use a genetic weapon against mosquitoes carrying malaria?
One gene drive to eliminate malaria seems to work in the lab. Now it’s time to ask local people if they want it released in the wild.
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Tech
A shape-shifting robotic tooth-cleaner might one day brush for you
A swarm of billions of magnetic, bacteria-killing nanoparticles can be shaped into bristles to fit any surface, including between teeth.
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Psychology
Why fandom feels good — and may be good for you
Psychologists and media scholars are looking into the who, why and how of becoming a fan.
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Animals
Some spikes in malaria cases may be tied to amphibian die-offs
Amphibian deaths from a fungal disease may have led to more mosquitoes — and an increase in malaria cases in Costa Rica and Panama.
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Health & Medicine
How wriggling, blood-eating parasitic worms alter the body
Parasitic worms eat blood and make people sick, but they may also help prevent or treat some diseases.