Beigel and Newman developed the prototype for their first product, an envelope filter called the Mu-Tron III, during the summer of 1972, and it became an overnight sensation when Stevie Wonder used ...

Sound machines promise better sleep, but new research suggests they may quietly steal your REM and deep sleep.

Joint noises are common and often misunderstood. A physiotherapist explains why they happen and what they do, and do not, ...