Doctors have been measuring patients’ blood pressure, the force that blood exerts on the inside walls of your vessels, since the first blood pressure cuffs were invented at the beginning of the 20th century.

However, Doctors are still finding new ways to extract information about your health and wellness from these numbers. British researchers recently found that differences in blood pressure between the right and left arms might be a sign of vascular disease. Likewise, a difference in blood pressure when you’re lying down vs. standing up may indicate heart problems or blood vessel disease. Your blood pressure readings can tell you and your doctor a lot about your current health and may even predict future problems. Due to this, the American Heart Association recommends you get your blood pressure checked during your routine doctor visits, or at least once every two years.