Using different oximeter devices for monitoring stable patients under NIV or CPAP may have an unpredictable effect on results and clinical decisions.

If you notice symptoms or suspect you have sleep apnea, here’s everything you need to know about what to tell your doctor and what to expect if they order a sleep study.

A study suggests that the first of seven key pyramids in Egypt, the Step Pyramid of Djoser, was built using a hydraulic lift. Dated to about 4,500 years ago, this would move up the introduction of ...