Nitric oxide (NO) in exhaled air is believed to reflect allergic inflammation in the airways. Measured levels of exhaled NO vary with the exhaled flow rate, which therefore must be standardized. The ...

lungThe respiratory system represents one of the body’s most remarkable yet often overlooked systems, automatically adjusting to our needs whether we’re sleeping, walking, or exercising intensely.

Rhythmic breathing allows you to slide easily into an effort and pace at which everything glides. In my early days on the run, I, like most, didn’t give any thought to breathing. But after dealing ...