Humans
- Chemistry
Some 3-D printing can leave toxic taint
The ”ink” inside some 3-D printers can leave toxic traces. In tests, these chemicals harmed baby fish. But lighting could render the parts safer.
- Animals
Profile: A human touch for animals
Temple Grandin uses her own autism to understand how animals think. The animal scientist is famous for fostering the humane treatment of livestock.
- Health & Medicine
Study equates sleepless nights with high-fat diet
Getting too little sleep has the same effect on blood sugar as eating high-fat foods, a study in dogs finds. This may set the body up for diabetes.
- Earth
Table salt and shellfish can contain plastic
Bits of plastic have turned up in sea salts purchased in Chinese supermarkets. The finding suggests all sea salts may be similarly tainted. Shellfish too.
- Health & Medicine
News Brief: Group dancing helps teens bond
Coordinated dance routines help teens bond with one another, new data show. Group dancing also offers other benefits, including a higher threshold for pain.
- Brain
Scientists discover itch-busting cells
A study in mice finds the body has a special way of dealing with an itch that’s caused by a light touch. The results could lead to treatments for chronic itch.
- Health & Medicine
Light can control waves in heart tissue
Researchers have used light to trigger and control electrical waves in the heart. The technique might one day provide new ways to treat heart disease.
- Health & Medicine
Some air pollutants seep through skin
The skin is the body’s largest organ. And it can let in as much or more of certain air pollutants than enter through the lungs, a new study finds.
- Chemistry
Slime cities
Biofilms are like tiny cities of bacteria — some harmless, others destructive. Scientists are learning how to keep these microscopic metropolises under control.
- Brain
Lessons from failure: Why we try, try again
We all suffer failures. But we don’t always try again. Focusing on what they can be learned might help people keep going, brain imaging data now show.
- Genetics
The earliest evidence of plague
Plague is best known as the killer disease that wiped out nearly half of Europe during the 1300s. But the germ infected people up to 3,000 years earlier than that, DNA from ancient teeth now show.
- Health & Medicine
Internet use may harm teen health
Using the Internet more than two hours a day puts teens at risk of high blood pressure, a new study finds.
