A viral video questions the safety of face masks by using a gas detector to purportedly show that masks result in dangerous oxygen levels for the wearer. But experts — and the company that makes the ...

Scientists have made the surprising discovery that some mammals can absorb oxygen through their intestines. The team experimented by administering oxygen enemas in a gas or liquid form to mice, rats ...

Nitric oxide has played many starring biochemical roles. In 1998, researchers received the Nobel Prize in Physiology or Medicine for discovering that the gas acts as a crucial signaling molecule in ...