Based in Tampa, Florida, Virginia Pelley is a former women's magazine editor who has written health and fitness content for Men's Journal, Cosmopolitan magazine, the Chicago Tribune, ...

Oxygen is one of those non-negotiable items in life. You can skimp on food, sunlight and, in emergency situations, morning coffee, but you can’t last more than a couple of minutes without oxygen. The ...

Microscopic ocean algae produce a huge share of Earth’s oxygen—but they need iron to do it. New field research shows that ...

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