Iron is an essential micronutrient that plays a vital role in transporting oxygen throughout the body and helps to support energy and reduce fatigue. Iron supplements can help reduce fatigue if you’re ...

Now 82, López García is a world-record-holding ultramarathoner and the subject of a new study trying to figure out how he ...

Personal Perspective: "Normal" isn’t perfection but a statistical range based on population data. Diagnoses compare ...

To take a pulse oximetry reading, turn on the device, place it on your fingertip, sit still, and wait for a stable reading. Normal oxygen saturation levels range from 95% to 100%; levels below 92% may ...

Scientists sent hurricane-level floods into a Maryland forest to find out what extreme weather and sea-level rise mean for coastal woodlands Kristen Goodhue PNNL Earth scientist Peter Regier (left) ...

Javascript must be enabled to use this site. Please enable Javascript in your browser and try again. Scams: Who they happen to and how. Hear true stories on The ...

Researchers in the U.S. have found that exposure to low oxygen levels — known as hypoxia — early in life can cause pulmonary hypertension (PH) by permanently altering lung blood vessel development.

In the thin air above 3000m, climbers battle fatigue, cold and altitude sickness, but what if the damage outlasts the expedition? A team at the University of Edinburgh has shown that even a brief ...

Researchers at Karolinska Institutet have discovered how cells can adjust their gene activity to survive when oxygen runs low. The study, published in Nature Cell Biology, reveals that cells use a ...

An implantable zinc magnesium battery generates hydrogen and removes oxygen inside tumors, triggering a hypoxia-activated drug and achieving strong, localized tumor suppression in mice. (Nanowerk ...