The Valsalva maneuver (“bearing down”) is done by exhaling forcefully with the airway closed, resulting in increased abdominal pressure. While the hemodynamic changes of the Valsalva maneuver ...

2. The Valsalva maneuver: This classic trick is often used by divers and frequent flyers. To perform it, follow these steps: Pinch your nose shut. Take a deep breath and gently blow out with your ...