Someone in the United States dies from cardiovascular disease every 38 seconds, according to experts at The American Heart Association Report. Heart disease is the top killer, leading to 610,000 deaths a year, or one in every four fatalities. Almost half of American adults have some form of cardiovascular disease.

Although both medical and surgical advances have helped cut both causes and symptoms, there are two dozen things experts suggest are likely to bring on heart disease, or make it worse.

While some lifestyle choices such as smoking, heavy drinking, and sitting too much have long been associated with an increased risk of heart problems, other factors are not as familiar. They include things that cannot be controlled such as a person’s height as well as blood type.

Controllable, but also lesser-known factors, include job occupation and whether a person lives in the city or not. Air pollution, which is common in bigger urban areas, has been linked to buildup of fat in blood vessels, which may eventually lead to heart attack.

Based on a survey of scientists, doctors, and heart and cardiovascular organizations, these are dangers everyone should avoid.

Click here to read about 28 dangerous things experts link to heart disease.