From Molecules to Organisms: Structures and Processes
- Humans
Forget droplets. Here’s how sweat really forms
This is the most detailed look yet at how we perspire. Beads of sweat are out, puddling is in.
- Animals
What dogs see on TV depends on their temperament
Breed, age or sex didn’t seem to matter in how dogs reacted to TV, but personality did. That’s according to a survey of more than 400 dog owners.
- Health & Medicine
Sleeping in — but not too much — may ease anxiety
Getting up to two hours of weekend catch-up sleep lowers anxiety in teens, new research shows.
- Chemistry
Uncover leaves’ hidden colors in this science activity
Let’s use a technique called paper chromatography to separate the pigments lurking in tree leaves.
- Humans
Vacation could provide teens time to practice independence
A poll shows U.S. parents are reluctant to let teens go places alone on vacation. Giving teens more independence may help their mental health.
- Health & Medicine
TikTok skincare routines may cause more harm than good
Many videos used lots of costly skincare products full of potential irritants. And most left out the most important way to care for your skin: sun protection.
- Chemistry
Scientists Say: Lipid
These oily, water-repelling molecules knit together, forming the membranes that sustain life.
- Science & Society
Analyze This: Do bad childhoods make movie villains?
In DC and Marvel movies, a rough childhood doesn’t always mean that characters become villains.
- Health & Medicine
This medicine could help teens quit vaping
The drug varenicline, paired with counseling and text messaging support, helped young people stop vaping in a new study.
- Physics
Here’s why your blood vessels don’t burst under pressure
Cells lining the blood vessels reorganize their inner structures to handle stressful boosts in pressure.
- Humans
After every soak, fingers wrinkle — and always the same way
Fingertip folds aren’t super swollen. Blood vessels constrict and pull skin inward, forming wrinkles.
- Microbes
Experiment: Yeasty beasties
It’s hard to believe a packet of dry yeast is full of living things. But feed the yeast the right things, and presto! You’ve got bubbly, oozing mess of life.
