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The United States has redefined what qualifies as "healthy" food for the first time in 30 years, striking items like white bread from the list while welcoming nutrient-rich options such as eggs and salmon, officials said Thursday.

A plant that lived 47 million years ago in what is now Utah is like nothing that lives on planet Earth today.

It's time to recalibrate the navigation systems on ships, airplanes, and (given the time of year) Santa's sleigh: the position of the magnetic North Pole is officially being changed, continuing its shift away from Canada and towards Siberia.

A previously unknown disease that has claimed the lives of dozens in the Democratic Republic of Congo is likely to be malaria, the African Union's health watchdog said Thursday.

The world has been getting hotter for decades but a sudden and extraordinary surge in heat has sent the climate deeper into uncharted territory - and scientists are still trying to figure out why.

The number of people classed as obese in the US has dipped for the first time in more than a decade, giving experts some hope of seeing a reversal in concerning health trends.

Earlier this year, scientists stumbled upon a potential new treatment for hereditary-patterned baldness, the most common cause of hair loss in both men and women worldwide.

Colorectal cancer's characteristic tumors are spurred on by chronic inflammation, and new research shows this might be linked to a diet of ultra-processed foods high in unhealthy oils.

A living time capsule frozen in the depths of Lake Enigma in Antarctica contains a unique ecosystem that has been isolated from the rest of the world since its surface permanently froze.

Twins have been rare in human history and for that reason can seem special.