Oxygen fills the air today, but for most of Earth’s early history it barely existed. Scientists say the atmosphere did not hold steady oxygen until about 2.

A new study suggests that some of the world’s oxygen-deprived oceans could eventually regain higher oxygen levels in the ...

Untreated sleep apnea can affect memory and other aspects of cognitive health, and it can get worse over time, with many ...

Newly released medical records show vile s-- pest Jeffrey Epstein sought to enlarge his "lemon" shaped micro-manhood and ...

Most shark fossils are just teeth—their cartilage skeletons usually decay long before they can fossilize. But in northwestern ...

Obstructive sleep apnea disrupts brain function in several ways, including low oxygen levels, interrupted sleep, and vascular risk. Several regions throughout the brain may shrink, and the ...

Since the beginning of January, an unusually long period of easterly winds has caused the average water level in the Baltic Sea to fall to a historic low. Measurements at the Swedish Landsort-Norra ...

Sharks have a branding problem. For many people, the word alone conjures images of horror: sleek predators stalking through ...

A fish kill at Silver Lake in Manitowoc County is under investigation after an angler reported seeing no live fish on their electronic devices.

About a million people experience overdoses in the U.S. every year. Nodding and overdose may both cause oxygen deprivation, ...

An Arctic farming experiment reveals that carbon losses from peat soils are not fixed, but highly sensitive to how water is ...

Experts say dangerous sleep apnoea affects an estimated 8 million in the UK alone, and everything from evolution to obesity or even the climate crisis could be to blame ...