Heart Disease Trends in the U.S.
ATLANTA — Heart disease continues to be the foremost cause of death globally. Yet, a recent study reveals that the death rates from heart disease among American adults aged 25 and older have decreased by 66% over the past 50 years. Notably, fatalities from heart attacks have plummeted by almost 90%.
“In the past five decades, we’ve greatly advanced our understanding of heart disease, its causes, and treatments,” commented Dr. Sara King, a second-year internal medicine resident at Stanford University School of Medicine in California.
“We’ve made significant progress in enabling individuals to survive acute cardiac incidents that were once deemed fatal,” added King.
However, there is a downside. The study, which appeared Wednesday in the Journal of the American Heart Association, showed an 81% increase in deaths from other types of heart disease in the U.S., which includes conditions like arrhythmia, heart failure, and hypertensive heart disease.
Both aspects of the data need to be understood in context, according to Dr. Andrew Freeman, who leads cardiovascular prevention and wellness at National Jewish Health in Denver.
“While the risk of dying from a heart attack is now relatively low compared to the past, the chances of severe disability following a heart attack remain high,” Freeman, who was not part of the study, stated.
“You might end up with heart failure, meaning your heart can’t efficiently pump enough blood, leaving you perpetually out of breath,” he explained. “Or you may become reliant on various medications for blood pressure, fluid management, and cholesterol, not feeling your best overall.”
“Being alive is one thing; being healthy is another,” Freeman remarked.
Increasing Cardiovascular Risks
The study reviewed government statistics on heart disease deaths from 1970 to 2022. Back in 1970, heart attacks accounted for 54% of all heart-related fatalities, but this figure dropped to 29% by 2022.
During the 1970s, deaths from atrial fibrillation and other arrhythmias—where irregular electrical impulses affect heart rhythm—were uncommon. By 2022, this number surged by 450%, making up about 4% of all heart disease deaths.
Heart failure fatalities rose by 146% during this period, while deaths from persistent high blood pressure increased by 106%.
The rise in certain heart disease types can largely be attributed to changing cardiovascular risk factors. The prevalence of obesity, Type 2 diabetes, high blood pressure, poor nutrition, and physical inactivity has soared in the last 50 years. From 1970 to 2022, obesity rates climbed from 15% to 40%. Nearly half of all adults in the U.S. now face Type 2 diabetes or prediabetes. High blood pressure rates jumped from 30% in 1978 to about 50% in 2022.
Another factor may be the aging baby boomer demographic, which is now at an increased risk for developing heart disease.
“All these risk elements create a persistent issue with heart disease, particularly concerning heart failure, hypertensive heart disease, and arrhythmias,” remarked Dr. Latha Palaniappan, senior author of the study and a professor of cardiovascular medicine at Stanford University School of Medicine.
“Heart disease is still a significant concern,” Palaniappan added. “We need to focus on helping individuals age with robust and healthy hearts, and prevention can begin as early as childhood.”
