Humans
- Health & Medicine
A sixth finger can prove extra handy
Two people born with six fingers on each hand adeptly control their extra digits, using them to do tasks better than five-fingered hands.
- Health & Medicine
A fungus plus a spider toxin equals a weapon to kill mosquitoes
A new weapon could help fight mosquitoes that spread malaria. It’s an engineered fungus that infects the insects — then kills them with a spider poison.
- Humans
DNA reveals clues to the Siberian ancestors of the first Americans
Researchers discovered a previously unknown population of Ice Age people who crossed the Asia-North America land bridge.
- Microbes
Gut bacteria may affect how well your medicines work
Gut bacteria can chemically change the drugs people swallow. ID-ing a patient’s microbes might one day help doctors prescribe the most effective drugs.
- Health & Medicine
By the numbers: How infectious measles and other diseases spread
A number called R0 measures how contagious an infectious disease is. It helps explain why measles is so dangerous.
- Health & Medicine
Scientists Say: Obesogens
The chemicals can change how the body stores fat or how often someone feels hungry — increasing the risk for obesity.
- Health & Medicine
Bats are now the primary source of U.S. rabies deaths
Although human rabies is not common in the United States, it still occurs. But here dogs are no longer the likely source of this oft-lethal infection: Bats are.
- Earth
Antibiotics pollute many of the world’s rivers
A survey of 165 rivers finds unsafe levels of antibiotics at one in six sites tested. Such pollution can leave germs resistant (unharmed) by the drugs.
- Health & Medicine
Fighting spider-fear with a little Spider-Man
Many people are afraid of spiders or ants. Watching a movie clip with the critters in it might help make people more comfortable with them, a new study shows.
- Health & Medicine
Youthful rebellion leads some teens to eat better
Once 8th graders learned how food advertisements have been developed to influence them, many rebelled — and started eating healthier.
- Health & Medicine
New risk from too much screentime
Americans of all ages are sitting more, according to a new national survey. And health experts find that worrisome.
- Health & Medicine
Scientists Say: Myopia
Myopia is nearsightedness, where people have trouble seeing far away objects. This happens if someone’s eyes are slightly oval, instead of perfect spheres.
