What to do when your blood pressure won't go down?

Many people have high blood pressure as they get older, and it can be difficult to control. Resistant hypertension is defined by blood pressure that remains above a specific goal, such as 140/90 mm Hg, despite taking three types of blood pressure medicines (including a diuretic) at the highest tolerable doses. Stroke, heart disease, dementia, and other health problems are all linked to the disorder.