Health & Medicine
- Life
Explainer: What is a stem cell?
Special cells have ability to turn into several different types
- Health & Medicine
Fat becomes a disease
Medical group decides it is time for doctors to view — and treat — obesity as a disease.
- Health & Medicine
Infection time
Disease is more severe when it hits in the morning, at least in mice.
- Brain
Explainer: Our bodies’ internal clocks
Biological clocks determine hunger, sleepiness and other daily rhythms.
- Health & Medicine
Flu in the air
Germs tiny enough to pass through surgical masks may cause half of all cases.
- Health & Medicine
An itch switch
Scientists identify a chemical that helps the brain know where to scratch.
- Health & Medicine
Wanted: ‘Smart’ cleaners
Active surfaces will — on their own — help remove everything from insects and germs to poisons.
- Chemistry
A penny for your health?
Copper is best known as the reddish metal used to make pennies, electrical wiring and weather vanes. But two teen scientists think copper should find its way into medical settings as well. Their data suggest the metal — in bandages or on surfaces — could play a major role in killing some types of bacteria responsible for serious infections.
- Health & Medicine
Killer-flu update
Infection that recently developed in China shows signs of being easy to spread and hard to kill.
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- Health & Medicine
Fuzzy future
Kids may suffer impaired vision from spending too little time outdoors, studies suggest.
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