Nearly half of US adults have heart or blood vessel disease

The American Heart Association said Thursday that more than 121 million adults had cardiovascular disease in 2016. Taking out those with only high blood pressure leaves 24 million, or 9 percent of adults, who have other forms of disease such as heart failure or clogged arteries.

Measuring the burden of diseases shows areas that need to improve, the heart association’s chief science and medical officer, Dr. Mariell Jessup, said in a statement.

High blood pressure, which had long been defined as a top reading of at least 140 or a bottom one of 90, dropped to 130 over 80 under guidelines adopted in 2017. It raises the risk for heart attacks, strokes and many other problems, and only about half of those with the condition have it under control.

Being diagnosed with high blood pressure doesn’t necessarily mean you need medication right away; the first step is aiming for a healthier lifestyle, even for those who are prescribed medicine. Poor diets, lack of exercise and other bad habits cause 90 percent of high blood pressure.