A dangerously low oxygen level—usually below 92%—can cause shortness of breath, confusion, chest pain, or fainting. It’s ...

A recent report out of Oregon State University paints a picture of how ocean oxygen levels have decreased in the Pacific Northwest over the years. The report found near-bottom levels of dissolved ...

Jennifer Mallon receives funding from US-UK Fulbright Commission, Smithsonian Institution Fellowship Program, University of Glasgow Early Career Mobility Award and the Link Foundation. Adrian Michael ...

The biggest mass extinction in Earth history some 251 million years ago was preceded by elevated extinction rates before the main event and was followed by a delayed recovery that lasted for millions ...

Elizabeth Cooney is a cardiovascular disease reporter at STAT, covering heart, stroke, and metabolic conditions. You can reach Liz on Signal at LizC.22. Oxygen is the breath of life, right? Because it ...

Giving very premature babies high concentrations of oxygen soon after birth may reduce the risk of death by 50 percent, compared to lower levels of oxygen says new research led by University of Sydney ...