Explore the 25 World's Most Dangerous Substances, from natural toxins like Botulinum to man-made chemicals. Understand their ...

Pressurized oxygen is proven to help the body heal faster. Now it’s being touted for reversing aging, boosting your brain and tightening your skin. By Katie Wright Forget subzero cryotherapy, ...

Data are needed on the effect of oxygen delivered through a high-flow nasal cannula, as compared with standard oxygen therapy, on intubation and mortality in patients with acute hypoxemic respiratory ...

Microscopic ocean algae produce a huge share of Earth’s oxygen—but they need iron to do it. New field research shows that when iron is scarce, phytoplankton waste energy and photosynthesis falters.

Disclosure forms provided by the author are available with the full text of this editorial at NEJM.org. Ary Serpa Neto, M.D., Ph.D. Australian and New Zealand Intensive Care Research Centre, School of ...