Sleep apnea can cause low blood oxygen during sleep. Low oxygen levels from sleep apnea can lead to health issues like ...

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 ...

An aerial view of a river surrounded by trees (Brian Beckwith/Unsplash via Courthouse News) (CN) — Inland waters like rivers, lakes, streams and reservoirs need oxygen to survive, just like we do, but ...

Snoring — a common annoyance in many households — can be caused by many factors, including sleeping positions, nasal obstruction, excessive weight, a cold, or pregnancy. However, it can also be caused ...

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 ...

As Earth’s magnetic field has risen, so have the conditions that helped complex life to thrive — a discovery that could aid the search for life on distant planets. The strength of Earth’s magnetic ...

A new study about mask wearing during the coronavirus pandemic found that masks don’t cause a person’s oxygen levels to drop.

Your body runs on blood like a car runs on fuel – without enough of it, everything starts breaking down. When blood levels drop too low, your organs begin struggling to get the oxygen and nutrients ...