Medically reviewed by Steffini Stalos, DO A dangerously low oxygen level—usually below 92%—can cause shortness of breath, confusion, chest pain, or fainting. It’s often triggered by lung or ...

The brain relies on continuous capillary flow to meet its high oxygen demands, but these vessels are prone to brief stalls ...

Folks on Big Spirit Lake have been observing strange behavior in the fish there for the past few weeks because of low oxygen levels in the water.

A recent study explored one possible cause -- hyperoxia or high concentrations of oxygen given to such patients during surgery -- as opposed to doses more similar to air. The study concluded that ...

Battaglia: Have we determined the cause of why these low oxygen levels are happening, or why the oxygen levels are getting lower? It seems like climate change is playing a factor in that?