Heart Attack Archive


Saturated fat and low-carb diets: Still more to learn?

Low-carbohydrate diets have been popular for many years, but due to the high amounts of saturated fat, doctors and nutritionists worry about possible increased risk of cardiovascular disease. A study comparing three diets found that eating a high-fat diet did not necessarily raise heart risk, but the types and quantities of food make a difference.

COVID-19 diagnosis raises risk of heart attack, stroke

A Swedish study suggests that risk of a heart attack or stroke at least triples in the week following a COVID-19 diagnosis.

Could high calcium intake damage my heart?

Past research hinted at a link between heart disease and a high intake of calcium from supplements, but more recent analyses have not found a connection between the two.

Different types of tachycardia

A rapid heartbeat may be due to supraventricular tachycardia or ventricular tachycardia. The former is usually harmless, while the latter is more serious and more likely to occur in older people with heart disease.

Drug therapy needs time to treat heart-related chest pain

Chest pain with exertion affects about one-quarter of people with stable coronary artery disease. A 2021 study found that these individuals can often eliminate their symptoms by following conservative drug therapy, without needing a stent or bypass surgery.

The danger of a "silent" heart attack

So-called silent heart attacks (marked by unexplained weakness, fatigue, shortness of breath, or nausea) often go unrecognized. But they may be almost as concerning as regular heart attacks and have been linked to a higher risk of stroke. Some of this heightened stroke risk stems from shared risk factors, including high blood pressure, diabetes, and elevated cholesterol levels. But heart attacks can also damage the heart’s lower chambers. This may prevent the heart from contracting normally, which can lead to formation of a clot that then travels to the brain, causing a stroke.

Experimental wireless pacemaker dissolves when no longer needed

A wireless, battery-free device that naturally absorbs into the body within two months may one day be a safer alternative to temporary pacemakers.

When is it safe to have sex after a heart attack?

Most men can resume regular sexual activity after a heart attack once they can engage in mild-to-moderate physical activity without issues, such as 10 to 20 minutes of brisk walking or climbing one or two flights of stairs. That means no chest pain, shortness of breath, lightheadedness, or extreme fatigue with exertion.

Do people who have COVID-19 go on to develop other diseases?

Evidence suggests that people who recover from COVID-19 have an increased risk for developing new health problems, including heart attacks, high blood pressure, diabetes, high cholesterol, muscle inflammation, blood clots that travel to the lungs, strokes from clots or hemorrhages, or psychosis. This is in addition to permanent damage that can result from having COVID, including damage to the lungs, heart, kidneys, brain, or other organs; and debilitating fatigue, difficulty thinking, and other symptoms that make it hard to function normally at work or at home.

Should you worry about prediabetes?

Approximately 88 million Americans—more than one in three—have prediabetes, a condition in which the average amount of sugar in the blood (glucose) is high but not high enough to be diagnosed as diabetes. Among people who develop prediabetes, older ones are less likely than younger ones to eventually develop full-blown diabetes. Still, they should have their glucose levels checked, as prediabetes can put them at high risk for heart attack and stroke.

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