Orthostatic hypertension (OHT) is a type of high blood pressure characterized by an increase in systolic blood pressure when transitioning from a seated or lying position to standing. Symptoms of OHT ...

That sudden wave of dizziness or lightheadedness after rising from a chair or bed is something almost everyone experiences at some point. For most, it lasts only a few seconds and resolves on its own.

Orthostatic hypotension — also called postural hypotension — is a form of low blood pressure that happens when standing after sitting or lying down. Typically OH causes mild dizziness, lightheadedness ...

Circadian blood pressures and heart rates were different in patients with CSS compared with control subjects. Nocturnal blood pressures and heart rates were higher in patients and this pattern ...