The investigators approach will combine HUT testing coupled with autonomic testing that includes continuous blood pressure and HR measurements, Baroreflex Sensitivity and Hear Rate Variability, to establish objective autonomic profiles, along with vascular testing including Pulse Wave Velocity,
Dysautonomia resulting in decreased HRV and impaired BRS, which may be accompanied by supine hypertension, is known to play a role in the development and progression of hypertension, which can lead to hypertensive heart disease including left ventricular hypertrophy and congestive heart failure as