DEAR DR. ROACH: I was 47 when my first colonoscopy found a villous adenoma, and during the past 21 years, I’ve had eight or ...

One idle evening last October, Mehtaab Sawhney took up an old pastime. He began perusing the website erdosproblems.com, an updated record of the 1,179 conjectures left behind by the eccentric and ...

What are the most pressing global crises in 2026? Each year, the International Rescue Committee’s (IRC) Emergency Watchlist identifies the countries at greatest risk of new or worsening humanitarian ...

The busy box that is your brain is hard at work all day long—and it doesn’t quit when you’re asleep. Not only does your brain fill your slumber with dreams, it also goes right on solving the problems ...

The average car has around 30,000 parts and many fluids are used to keep them running properly. The most important fluids are motor oil, transmission fluid, brake fluid, washer fluid and coolant.

Sven, a sales leader, received a call from a major customer who was furious. Their order arrived late, the product was damaged, and to top it off, their invoice didn’t reflect the volume discount ...

Going out to your car and finding a leak can make you worry about making it out of the driveway, let alone to the nearest auto repair shop. Depending on the severity of the leak, you may need to tow ...

Word problems try and tell students a story about the math problem in front of them. They are a useful way to connect abstract numbers to concrete situations, so students can learn early on to apply ...

When the greatest mathematician alive unveils a vision for the next century of research, the math world takes note. That’s exactly what happened in 1900 at the International Congress of Mathematicians ...

The presence of fluids in the subsurface can have a key influence on the processes and dynamics within active fault zones. Recent years have seen an increase in our understanding of the interaction ...

Mathematicians have finally succeeded in unifying the laws of physics that govern the motions of particles at different scales. Their efforts resolve a question set by mathematician David Hilbert in ...

We asked U.S. teens how common a variety of problems are among students at their school. Anxiety and depression tops the list, with 30% of teens saying it’s extremely or very common at their school.