Psychology
Too much sitting could hurt your mental health
As inactivity increases, so does risk of depression and other mental health problems, new studies show. But breaks for even light activity can help.
Word of the Week
Fossils
Scientists Say: Dinosaur
Dinosaurs emerged between 243 and 233 million years ago. While some died out 66 million years ago, others are still with us — birds.
Explainers
Brain
Explainer: What is a neuron?
From the moment you are born, cells called neurons sense information, process it and then pass it on. Neurons allow you to do everything that you do.
Experiments
Physics
Getting cozy with a science experiment
Items you use in your home can inspire a scientific experiment.
What's Hot
COVID-19 vaccines
Watch This
Tiny spider uses silk to lift prey 50 times its own weight
Dropping the right silk let’s a spider haul mice, lizards and other giants up off the ground.
