How blood pressure and heart rate respond to standing and exercise

This research study is investigating how your autonomic nervous system — the part of your body that automatically controls heart rate and blood pressure — responds to physical stress like standing up quickly or exercising. Researchers want to understand why some people with high blood pressure have unusual blood pressure responses during these activities, and how their blood vessels and heart function differently compared to healthy people.

Some people with high blood pressure experience problems like dizziness when standing up or excessive blood pressure spikes during exercise. This study aims to better understand why these problems happen so doctors can develop better treatments and predict who might be at risk.