Humans
Let’s learn about adrenaline
In short bursts, this hormone can help you face your fears. But in the long run, too much of it can be unhealthy.
Health & Medicine
More Stories in Health & Medicine
- Health & Medicine
Explainer: What are ultraprocessed foods?
Packed with chemical additives, these foods have become a major part of our diets. Scientists have begun to worry about how ultraprocessed foods may impact health.
- Health & Medicine
Got brain rot?
Excessive scrolling through social media or viral videos can mess with your mental health — and possibly alter your brain’s development, studies show.
- Science & Society
Stressed by tech? Here’s how to find help
This checklist can help you assess and improve your experiences — and your mental health.
- Science & Society
Large numbers of underage kids are on social media, study finds
Two in every three kids aged 8 to 12 have already been on social media, and one-tenth have been bullied there. Some kids report other bad experiences too.
- Health & Medicine
A new cell model could help kids and teens with arthritis
This model was built by a teenager with juvenile idiopathic arthritis — a poorly understood chronic illness.
- Health & Medicine
Scientists Say: Symptom
A runny nose, fever or feeling of fatigue might clue your doctor in to the right diagnosis.
- Tech
New light-activated coating can kill stubborn germs
Based on graphene, this new material can knock out hard-to-kill germs on contact — even in your mouth.
- Humans
Using physics can help athletes avoid sports injuries
Jessica Talmage uses physics to help understand how the body moves. Her findings help athletes avoid sports injuries and improve their performance.
- Health & Medicine
New study links early smartphone ownership to health risks
The earlier kids get smartphones, the more likely they’ll get too little sleep, gain weight — and possibly develop depression, a new study suggests.
