Health & Medicine
- Microbes
Scientists Say: Virus
A virus must take over a living cell's machinery to make more viruses.
- Health & Medicine
Fentanyl deaths have spiked among U.S. kids and teens. Here’s what to know
A pediatrician discusses how teens can protect themselves and their friends from this extremely deadly drug.
- Humans
How fingerprints form is no longer a mystery
A mathematical theory proposed in the 1950s helps explain how fingerprint patterns such as arches, loops and whorls arise.
- Chemistry
Scientists Say: PFAS
Non-stick coatings, stain-resistant cloth and other common materials leach long-lived PFAS into soil and water.
- Brain
Ingredients in popular snack foods can make them addictive
Researchers find that highly processed foods rich in sugar and added fat may be as addictive as tobacco.
- Health & Medicine
How to be heat-safe when playing sports
Protecting young athletes from overheating is getting more important as climate change turns up the temperature.
- Health & Medicine
Scientists Say: Kidney
The kidneys remove waste and excess water from the blood, forming urine.
- Health & Medicine
Let’s learn about allergies
Allergies are caused by the body’s immune system overreacting to harmless substances.
- Health & Medicine
New brain scans may show if a concussion has not yet healed
Concussions change certain brain waves, and delta waves may be the best signs of when teens can return to competitive sports.
- Health & Medicine
High school scientists tackle community health and safety risks
Three finalists in the 2023 Regeneron Science Talent Search aim to improve suicide risk assessment, treatment of sickle cell disease and more.
- Science & Society
How daylight saving time throws off your internal clock
Turning the clock ahead knocks our bodies and brains out of sync with the sun. That leads to many potential health issues.
- Health & Medicine
Explainer: Why it’s easier to get sick in the winter
Low humidity helps viruses survive, and cold weather blunts some of the body’s immune responses — making colds and other viral infections more likely.
