Sympathetic Transduction in Obesity-associated Hypertension (OB-HTN)

This study is investigating how the nervous system's automatic control of blood pressure (the sympathetic nervous system) differs between people who are a healthy weight, obese, or have high blood pressure — and how obesity may contribute to high blood pressure. **You may be eligible if you fall into one of the following groups:** - Healthy weight (BMI under 30), aged 18–55, without high blood pressure - High blood pressure diagnosis confirmed by a 24-hour blood pressure monitor, aged 18–55, BMI under 30 - Obese (BMI over 30), aged 18–55, without high blood pressure - Obese with high blood pressure (BMI over 30), aged 18–55 **You may NOT be eligible if:** - You have significant heart disease, kidney disease, diabetes, or a history of smoking Talk to your doctor to see if this trial is right for you.