Many over-the-counter medications warn against taking them if you have high blood pressure. What medications should I avoid and why?

My doctor recommends exercise to keep my blood pressure under control, but bad knees limit my options. What do you recommend?

What does it mean when high blood pressure reaches stage 2?

Based on my blood pressure reading at my doctor's office, my doctor says I have prehypertension (blood pressure between 120/80 and 139/89). What should I do?