High blood pressure, or hypertension, is defined as blood pressure above 140/90 mmHg and affects around 50 million people in the US. It occurs when the force of blood against artery walls is too high and can lead to heart disease and stroke over time if not managed. Hypertension is primarily diagnosed through repeated blood pressure readings and treated initially through lifestyle changes like diet, exercise, and reducing stress and alcohol/tobacco use. If lifestyle changes are insufficient, medication therapy is used, which may include ACE inhibitors, ARBs, calcium channel blockers, diuretics, beta blockers, and alpha blockers to help relax blood vessels and lower blood pressure.