Normal human cells need just the right amount of oxygen — not too much nor too little — to survive and stay healthy. This critical balance is regulated by an intricate oxygen-sensing process in the ...

PORTLAND, Ore. — KGW wanted to address several claims going around stating that wearing a mask lowers your oxygen levels. Viewer Linda W. emailed, asking, “I keep hearing that a person’s O2 stats ...

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What could a fit mountaineer scaling the world’s tallest peak possibly have in common with an obese store clerk living at sea level? Both need equipment that can deliver extra oxygen but may have ...