While ultramarathoners are capable of huge energy spurts, overall the athletes top out at 2.5 times the metabolic rate needed for basic body functions.

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Ultraprocessed foods can create powerful pulls similar to those of alcohol, nicotine or opioids, with worrisome consequences for our health.

Blazes sparked in wild lands are devastating communities worldwide. The only way to protect them, researchers say, is to re-engineer them.

Normal cellular processes in living things — from germinating plants to our own cells — create biophotons, though escaping light isn’t visible to us.

As evidence of alcohol's harms mounts, some people are testing out sobriety. Look to ancient civilizations' ways for a reset, scholars suggest.

Protein is having a moment. But even if most people are eating enough protein, studies suggest they may not be eating the right mix.

In The Water Remembers, Amy Bowers Cordalis shares her family’s account of the Indigenous-led fight to restore the Klamath River in the Pacific Northwest.

Sensor data reveal greater noctule bats chasing, catching and chewing on birds during high-altitude, nighttime hunts.

The Nobel Prize might be the most famous science prize but it celebrates just a narrow slice of science and very few scientists.

The global die-off of coral reefs signals a critical shift in Earth’s climate system with global environmental consequences along with economic ones.

Big questions on how food affects our health Editor in Chief Nancy Shute explores the science behind major questions on food and health — from the addictive potential of ultraprocessed foods to the ...