PHILADELPHIA -- Marketed as a ticket to deeper sleep, the soft hum of pink noise has become part of millions’ nightly routines. However, its use may come at the cost of sleep quality, a University of ...

A study found that certain types of background noise used by millions to help them sleep actually interferes with their sleep cycle.

Sound machines may not be the sleep saviors many believe. Researchers found that pink noise significantly reduced REM sleep, ...

Color us surprised. Plenty of people use apps and ambient sound machines to reduce clamor and improve their sleep — but not all noise is created equal. In fact, new research suggests that a particular ...

Pink noise is different. Instead of equal energy at each frequency, the energy halves with every doubling of frequency (so ...

Forget the "quiet study room," new research suggests that your level of interest is the real secret to focus. Learn how an engaged mind ignores construction noise while boredom triggers stress and ...