Though it might feel great to finish a workout and see "calories burned" pop up on your smartwatch, that number is often surprisingly inaccurate, with estimated error rates of 30%–80%. The watch's ...

HIIT is commonly performed at about 80 percent of peak heart rate, while sprint intervals are more of an “all-out” effort designed to get you to 100 percent of your VO2 max, the researchers noted.

A recent Finnish study has found that measuring adolescents' maximal oxygen uptake often requires a brief verification phase to ensure reliable results. The researchers also note that even small ...

Learn more about this metric and the best training sessions to add to your schedule to boost your cardio fitness.

VO2 max is an important measure of aerobic conditioning, whether you’re an Olympian or just a person hoping to stay healthy ...

Protein is a hot topic in the nutrition world, especially with the release of the 2026-2030 U.S. Dietary Guidelines. As a dietitian, I’m often asked how much protein people need daily. The answer ...

The Hechinger Report covers one topic: education. Sign up for our newsletters to have stories delivered to your inbox. Consider becoming a member to support our nonprofit journalism. Students, parents ...

Students, parents and school principals all instinctively know that some teachers are better than others. Education researchers have spent decades trying — with mixed success — to calculate exactly ...

We may receive a commission on purchases made from links. While it may seem intimidating at first, there are plenty of easy DIY auto maintenance projects that even the most novice DIY-er can handle.

Scientists are still trying to understand the nuances of oxygen’s atomic behavior in water. A new study using an ultra-advanced laser successfully imaged an oxygen atom in water for the first time. To ...

In a world run by computers, there is one algorithm that stands above all the rest. It powers search engines, encrypts your data, guides rockets, runs simulations, and makes the modern digital ...

Kids in elementary school learn—or are supposed to learn—how to add fractions and round numbers. But many students at the University of California, San Diego—a top public university ranked sixth ...