Heart Health Archive

Lower temperatures, high wind speed, atmospheric pressure, high precipitation, and high degrees of pollution may raise the risk of being hospitalized for serious heart-related conditions. Modeling these factors may help forecast future heart problems.

Troponins, which are proteins found in heart muscle cells, are released in the bloodstream during a heart attack. Other conditions, such heart muscle inflammation and chronic kidney disease, can also cause troponin levels to rise.

A polygenic risk score for heart disease is based on an analysis of more than three million common DNA variants and is expressed as a percentile. People can have zero, one, or two copies of any variant, each of which may either raise or lower the risk of coronary artery disease. Many of these variants occur in genes known to affect heart disease, such as those related to cholesterol, blood pressure, and blood clotting. Others aren't well understood and may provide targets for future research, potentially fueling new drug discovery efforts. For now, the potential benefits of this test are greatest for people under 50.

A spray version of nitroglycerin (a drug used to treat angina) is just as effective as the under-the-tongue pill version of the drug. The spray also has a longer shelf life.

Following a vegetarian or vegan diet may help lower levels of total and LDL cholesterol, according to a 2023 review of studies published over four decades.

Four eating patterns—including the DASH, Mediterranean, pescatarian, and vegetarian diets—align most closely with recommendations for a heart-healthy diet, according to a 2023 scientific statement from the American Heart Association. These diets limit saturated fat and excess carbohydrates, especially highly processed carbohydrates and sugary drinks. Evidence supporting these diets comes from decades of randomized trials, population-based studies, and other research.

Hiking can promote cardiovascular health by building lower-body strength and boosting the heart rate, especially if the route involves elevation changes. Using poles can provide stability, especially during the downhill stretches. Using poles also helps strengthen the muscles of the upper body and may increase the number of calories burned during a hike.

There are two different mechanisms by which most heart attacks happen. Both are related to insufficient blood flow to an area of the heart, most often secondary to fatty plaque buildup in coronary arteries. Chest pain remains the most common heart attack symptom, but others are often subtle, and the underlying process causing the heart attack can differ. It's important for people to recognize the different signs of heart attacks, so they know when to seek immediate medical care.