Climate change is extending far beyond the threat of melting polar ice caps -- it's putting a dangerous stranglehold on life in oceans, too. A new study published in the science journal Nature ...

It's no secret that Earth is doomed. Sure, there's the threat of climate change and the fact that sea levels are rising around the world. But that's not what we're talking about. Instead, our planet's ...

NASA’s latest forecast has stirred both curiosity and alarm: Earth is slowly heading toward a “great deoxygenation.” While the space agency says this event is likely still 10,000 years away, the ...

May 8 (UPI) --Sleep apnea could be costing you brain power and increasing your risk of dementia and Alzheimer's disease, a new study says. The drop in blood oxygen levels that occurs during a sleep ...

It's well known that exercise is good for your brain. For years, scientists have shown even a single session of heart-pumping ...

In the thin air of Nepal's highlands, scientists are witnessing humans evolving in real time as they adapt to one of Earth's harshest environments. Above 3,500 meters (around 11,500 feet), oxygen ...