For decades, receiving oxygen treatments for conditions such as COPD meant being tethered to bulky canisters of compressed oxygen, which limited mobility and independence. An atmosphere of pure oxygen ...

During a visit to a hospital in Kano State, Nigeria, four years ago, Tayo Olaleye recalls seeing a young boy connected to an oxygen concentrator and learning he had been on it for more than a month.

Jessica Booth is a New York-based freelance writer who regularly writes about health, wellness, parenting, food, travel, beauty and more for a variety of publications. She currently writes for Forbes ...