Humans
- Health & Medicine
Explainer: The body’s immune system
An army of cells — and their protein arsenal — work to keep us safe. Several squads of special forces possess unique superpowers to disable or kill intruders.
- Archaeology
The earliest known pants are surprisingly modern — and comfy
This 3,000-year-old garment was not only stylish but also functional. By recreating it, scientists also unraveled its complex and multicultural origins.
- Brain
Is the sky really blue? It depends on what language you speak
English speakers talk about color a lot but rarely about smell. Researchers are learning how those who speak other languages sense the world and why differences arise.
- Archaeology
Our species may have reached Europe while Neandertals were there
Archaeological finds from an ancient French rock-shelter show periodic settlements by both populations, just not at the same time.
- Brain
Addiction can develop when reward-seeking changes a teen’s brain
Over time, the pleasure disappears and craving grows. That craving causes stress that can drive people to use drugs or pursue unhealthy behaviors again and again.
- Brain
Americans tend to see imaginary faces as male, not female
When people see imaginary faces in everyday objects, those faces are more likely to be perceived as male than female.
- Health & Medicine
Here’s how a new sleeping bag could protect astronauts’ eyesight
A new sleeping bag could avoid vision problems on long space flights due to microgravity. It counters a fluid buildup behind astronauts’ eyes.
- Science & Society
New training builds ‘mental’ muscles in athletes
The training builds focus and resiliency while limiting the self-doubt that can cripple competitors’ ability to perform at their peak.
- Animals
Mysterious kunga is the oldest known human-bred hybrid animal
People bred these animals — part donkey, part wild ass — some 4,500 years ago, probably for use in fighting wars.
- Brain
Nodding off may turn your creativity on
In an experiment, people who fell into a shallow sleep were more likely than non-sleepers or deep sleepers to discover a sly math trick.
- Health & Medicine
Explainer: How loud is too loud?
Loud sounds, be it music or noise, might seem like no big deal at the time. But permanent damage can occur without noticeable warning signs.
- Psychology
We all imagine being friends with celebrities. Is that a bad thing?
One-sided relationships with celebrities and fictional characters are normal. They also can boost self-esteem and empathy.
