Humans
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Health & Medicine
Smiles Turn Away Colds
A good mood and a relaxed attitude help keep colds away.
By Emily Sohn -
Health & Medicine
Hot Pepper, Hot Spider
Hot peppers and spider venom can cause the same sort of painful burning sensation.
By Emily Sohn -
Health & Medicine
Disease Detectives
This year's top young scientists faced medical challenges in labs at the National Institutes of Health.
By Emily Sohn -
Humans
Oldest Writing in the New World
Signs carved into a stone slab may represent the earliest known writing in the Americas.
By Eric Jaffe -
Health & Medicine
Getting Enough Sleep
Kids and teens need plenty of sleep but have trouble getting enough.
By Emily Sohn -
Health & Medicine
A Sour Taste in Your Mouth
Researchers may have pinpointed how the tongue's cells detect sour tastes.
By Emily Sohn -
Archaeology
Sahara cemetery
Archaeologists uncover the remains of a Stone Age settlement in the Sahara desert.
By Emily Sohn -
Health & Medicine
Sun screen
Too much exposure to the sun's ultraviolet rays can damage human skin. That's why doctors recommend people who will be outdoors for long hours in the summer sun protect their skin.
By Emily Sohn -
Health & Medicine
Germ zapper
A compound found in nature kills certain bacteria in a new way.
By Emily Sohn -
Humans
If only bones could speak
The shape of fossil spine bones suggests that ancient human ancestors could speak.
By Emily Sohn -
Health & Medicine
Prehistoric trips to the dentist
Thousands of years ago, some people had holes drilled into their teeth.
By Emily Sohn -
Health & Medicine
Attacking Asthma
Most kids with asthma no longer have to limit their activities.
By Emily Sohn