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 ...

A recent study in Germany investigated whether the analysis of beat-to-beat blood pressure in patients with Parkinson's disease (PD) could be used to ... such as the Valsalva maneuver and tilt ...