Humans
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Health & MedicineSexist attitudes about smarts may emerge by first grade
People often think women can be smart, but that men are more likely to be brilliant. This stereotype may form as young as age six, new data show.
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Health & MedicineMath attitude influences math achievement
Bad feelings about math beget bad grades, a new study shows. The good news? Positive feelings are associated with good grades, too.
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Health & MedicineScientists Say: Hyperthermia
If our body temperatures rise too high, we can suffer from hyperthermia.
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Science & SocietyHeartbeat can affect racial perception of threat
Links between nerves in the heart and the brain shed light on why some police may be more likely to shoot an unarmed person who’s black than one who is white.
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EnvironmentHeart risks seen in regular vapers
New symptoms show up in regular e-cigarette users. They suggest vapers are putting themselves at elevated risk of heart disease
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Health & MedicineCleaner water helps male fish again look and act like guys
Water pollution can give male fish female traits — such as the ability to make eggs. And that’s not a good thing. Better water treatment may prevent that, data now show.
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Health & MedicineBullying hurts — but peer support really helps
Bullied kids face more mental illness as adults, new studies find. Other research suggests support from other kids can lessen the impacts.
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TechMagnets may one day cull deadly germs from blood
A new technique for slowing the deadly condition called sepsis would use tiny iron particles and magnets.
By Sid Perkins -
BrainStuttering: Blood flow in the brain may play a role
A new study shows people who stutter have less blood flow to a language center in the brain known as Broca’s area.
By Lela Nargi -
Health & MedicineScientists Say: Frostbite
As we get cold, the blood vessels near our skin constrict to keep body heat in. But in the process, they leave some tissues in danger of frostbite.
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Health & MedicineViolence spreads like a virus
New research shows that the friends of violent teens are much more likely to become violent themselves.
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Health & MedicineScientists Say: Hypothermia
Our bodies need to stay warm to function correctly. If our temperature drops too much, we can suffer from hypothermia.