Humans
- Brain
Trading smartphone time for sleep? Your loss
A new study shows more and more teenagers are hanging out on devices when they should be catching ZZZs, putting their health at risk.
- Health & Medicine
High-nicotine e-cigs up chance teen will become a smoker
New study links vaping high levels of nicotine to greater likelihood teens will vape — and smoke — six months later.
- Life
Doctors repair skin of boy dying from ‘butterfly’ disease
Researchers fixed a genetic defect, then replaced about 80 percent of a child’s skin. This essentially cured the boy’s life-threatening disease.
- Chemistry
Scientists Say: Amino Acid
Amino acids are small molecules that make up proteins and serve as messengers in our cells.
- Archaeology
Scientists detect mystery void in Great Pyramid of Giza
Using high-tech tools normally reserved for studies in particle physics, scientists have found a large, hidden void inside Egypt’s Great Pyramid of Giza.
- Health & Medicine
Scientists Say: Vestigial
This adjective is used to describe something — like a body part or organ — that doesn’t have a function. Often it is smaller or less developed than the functional version in another species.
- Environment
Touching receipts can lead to lengthy pollutant exposures
The chemical BPA, which coats some cash-register receipts, may linger in the body for far longer than if someone had ingested it.
- Chemistry
Explainer: Store receipts and BPA
The chemical BPA may become trapped in the skin, causing it to linger in the body for a week or more after touching receipt paper.
- Health & Medicine
For teens, a good mood depends on good sleep
Teens need eight to 10 hours of sleep at night to feel good and function well the next day, a new data show.
- Health & Medicine
Student invents 3-in-1 hygiene powder
A teen who volunteers at a homeless center has developed a powdery product that can serve as dry shampoo, body powder and toothpaste.
- Environment
Vaping may stiffen the heart and blood vessels
Exposure to e-cigarette vapors damages blood vessels in mice, suggesting that vaping could put people at risk for heart disease.
- Health & Medicine
Analyze This: Does moderate screen time boost teen happiness?
Computers, smartphones and TVs are everywhere. And scientists are trying to discover whether that’s a good thing for our well-being.
