Health & Medicine
- Health & Medicine
Violence spreads like a virus
New research shows that the friends of violent teens are much more likely to become violent themselves.
- Health & Medicine
Scientists Say: Hypothermia
Our bodies need to stay warm to function correctly. If our temperature drops too much, we can suffer from hypothermia.
- Animals
How birds know what not to tweet
How do birds perfect their pitches? The chemical dopamine spikes when they sing right, and dips when they drop a note, new data show.
- Brain
Explainer: What is dopamine?
Dopamine is a chemical messenger that carries signals between brain cells. It also gets blamed for addiction. And a shortage of it gets blamed for symptoms of diseases such as Parkinson’s.
- Brain
Explainer: What is neurotransmission?
When brain cells need to pass messages to one another, they use chemicals called neurotransmitters. This sharing of chemical secrets is known as neurotransmission.
- Health & Medicine
Scientists Say: Bruxism
Some people clench their jaw when their stressed. People who do it a lot may have bruxism.
- Health & Medicine
Extreme survival: Managing the deadly cold
Extreme cold can cause frostbite, hypothermia — even death. Knowing the risks can help keep you safe even when it’s freezing cold.
- Health & Medicine
Seven tips for staying safe in frigid weather
Maps? Check. Water? Check. Insulating clothes? Check. Here’s the checklist to consult before planning to trek out in the frigid cold.
- Health & Medicine
Snot Science: A snotty setup
We’ve got a video with a snotty experiment. Now we describe how you can do the same test yourself. Try it!
- Health & Medicine
Snot Science: Results are nothing to sneeze at
We tested a lot of snot, but now we need to figure out what our data mean. Here’s how to group and analyze our data.
- Health & Medicine
Snot Science: Taking mucus to the next level
There’s more to science than just squirting snot. It’s time to place data in context and figure out how to take my boogers to the next level.
- Health & Medicine
Scientists Say: Tinnitus
Ever had ringing in your ears? Tinnitus is a condition in which you hear a persistent sound that isn’t there.
