Humans

Physics

The movie Frozen inspired the icy, 3-D printing of blood vessels

Ice guides a 3-D printing method to make realistic, artificial blood vessels. One day, such vessels could be used in lab-grown organs.

Chemistry

Here’s why teens’ body odor can be especially strong

The body odors of teens and younger kids share dozens of chemicals in common. But teens have some that infants and toddlers appear to lack.

Artificial Intelligence

Artificial intelligence is making it hard to tell truth from fiction

Experts worry that by making it harder to tell what’s true, AI can threaten people’s reputations, health, fair elections and more.

Physics

Let’s learn about particles that help us peer inside objects

Particles such as muons, X-rays and neutrons help scientists peer inside fossils, mummies, pyramids, volcanoes and the human body.

Health & Medicine

With measles outbreaks in 49 countries, should you worry?

By March, the United States had more measles cases than in all of 2023. It was part of a global trend. The way to halt measles’ spread: vaccinations.

Archaeology

A tattoo experiment hints at how Ötzi the Iceman got his ink

The findings challenge a common idea about how the mummified man got marked with dark lines.

Health & Medicine

Too much noise can harm far more than our ears

Sure, loud or unwanted sounds can damage hearing. But they also can disrupt learning, stress us out and more.

Humans

Let’s learn about fingerprints

Researchers are still making new discoveries about how our fingerprints form — and how to use them to solve crimes.

Health & Medicine

A new type of immune cell may cause lifelong allergies

These special memory cells were present in people with allergies and absent in those without.

Psychology

You’re too distracted. Here’s why that matters and what to do about it

Science reveals the many reasons we are so distracted, from poor sleep and social media to diet and exercise. It also shows us how to take back our focus.

Humans

Explainer: What is autism?

Autism is not a disease, but a description used to characterize a certain type of brain development.

Science & Society

U.S. lawmakers look for ways to protect kids on social media

The U.S. government wants to protect young social media users from exploitation, bullying and more. The companies should play a role in this, it says.