The coronavirus is straining the global health care system, with one piece of lifesaving medical equipment in particularly scarce supply: mechanical ventilators. A ventilator helps patients who cannot ...

We think of oxygen as life, sustenance, a literal breath of fresh air. But it's actually a very reactive element. Anyone who's burned a log has witnessed this firsthand. So why do so many life-forms ...

The human body has a number of mechanisms that prevent you from holding your breath until you suffocate. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

In a hot spring at Yellowstone National Park, a microbe does something that life shouldn’t be able to do: It breathes oxygen and sulfur at the same time. Take a deep breath. A flow of air has rushed ...