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.

Apple's current blood oxygen sensing implementation in the U.S. does not infringe on patents owned by Masimo and Apple will not face a revived import ban, a U.S. International Trade Commission judge ...

A car that hesitates when the accelerator is pressed is usually experiencing a fuel delivery problem, an ignition issue, or a sensor fault disrupting the engine management system’s air-fuel ...

Dartmouth researchers have developed a cell phone-based tool that monitors tissue health by using a naturally occurring ...

Unexplained hyperglycemic events may be due to undetected occlusions, a common problem that experts say needs to be addressed through education and technology.

A driver’s frustrating check-engine saga is making the rounds after a repair estimate swung from “brace yourself” to “that’ll ...