Humans
- Health & Medicine
Legalizing pot may confuse teens into thinking it’s safe
A growing number of teens think marijuana is no big deal, a new study finds. And that may encourage many to experiment with its use.
- Brain
Study links ADHD to five brain areas
A new international study shows that the brains of children with ADHD are different from those in people without this condition.
- Health & Medicine
Analyze This: Zika and microcephaly
Data from pregnant women with Zika in Colombia helped scientists probe whether Zika causes birth defects.
- Science & Society
Fossils point to Neandertal diets — and medicine use
Whether Neandertals were largely meat-eaters or vegans depended on their environment, fossils now suggest. Their teeth also indicate they used natural medicines.
- Psychology
People tend to tune out details of ‘female’ jobs
Stories about people performing ‘women’s’ jobs are less memorable, a teen’s research finds.
- Archaeology
Silk Road’s origins may date back millennia
The mountain treks of ancient herders helped mold a cross-continent trade network known as the Silk Road.
- Animals
Frog’s gift of grab comes from saliva and squishy tissue
What puts the grip in a frog’s high-speed strike? Quick-change saliva and a super-soft tongue, scientists find.
- Microbes
Teen invents a dip to keep germs away
A teen competing in the 2017 Regeneron Science Talent Search invented an eco-friendly chemical mix. It should keep bacteria from growing on treated paper, fabrics — including wound coverings — and more.
- Brain
Teens make riskier decisions than children or adults
Teens may make risky decisions in part because they don’t care about uncertainty.
- Health & Medicine
Hibernation: Secrets of the big sleep
Mammals from bears to squirrels hibernate the winter away. Learning how they do it might one day help people mimic aspects of it to heal from brain injuries or voyage to Mars.
- Health & Medicine
Jiggly gelatin: Good workout snack for athletes?
Eating a vitamin-rich, Jell-O-like snack could help the body make the collagen needed to repair bones and ligaments that can be damaged by exercise.
- Psychology
Physically abused kids struggle to learn about rewards
What physically abused kids learn about rewards at home can lead to misbehavior elsewhere.
