Heart Health Archive

A trial from 2019 showed a medication dramatically reduced triglyceride levels in participants, but subsequent analysis found that the placebo used in the trial may have negatively affected those assigned to take it.

Taking an aggressive approach to lower high blood pressure with more medication can help many older adults reduce their risk for heart attacks, stroke, and heart failure. But they need to weigh the benefits with the potential side effects of extra medication.

Psychological issues such as anger, anxiety, depression, and work stress are associated with a greater likelihood of the heart rhythm disorder known as atrial fibrillation, according to a 2022 study.

A big, hearty salad can provide the recommended daily dose of vegetables. Adding other filling ingredients such as starches and proteins turns a salad into a healthy, satisfying meal.

Sitting too much can boost stroke risk. But adding more movement—even low-effort activity such as doing household chores—may help lower that risk.

Long touted as beneficial for heart health, high-density lipoprotein (HDL) is more complicated than experts once thought. Some forms of HDL grab cholesterol from the bloodstream and other tissues and transport it to the liver, where it's recycled or disposed, but other types are neutral or perform the opposite action. Most drugs that raise HDL don't seem to prevent heart disease, and very high HDL levels may even be linked to a higher risk.

Women don't fare as well as men when it comes to getting treatment for coronary artery disease. Social and cultural factors may help explain this discrepancy. Women tend to downplay their symptoms and delay seeking treatment. But health care providers may be contributing to this problem, too A major underlying issue may be the underrepresentation of women in clinical trials of heart-related conditions.

Cardiovascular conditions can increase a person's risk of falling. Such falls are usually related to a lack of blood flow to the brain that causes a person to faint. The most common cause is orthostatic hypotension, but severe aortic stenosis and the heart rhythm disorder known as atrial fibrillation can also cause a person to faint. Other falls may result from cerebral microvascular disease, a type of blood vessel damage in the brain that develops over time.

Too much or too little potassium can harm the heart. Diet, medications, and kidney function can affect the body's potassium level. Dietary potassium helps keep blood pressure in a normal range, but most Americans don't consume enough of this mineral. However, people taking medications that raise potassium levels—which includes certain drugs to treat high blood pressure and heart failure—should avoid salt substitutes made with potassium chloride.

For some people, the effects of the influenza (flu) virus can lead to a heart attack or cardiac arrest (sudden death). These people typically have reduced blood flow to the heart due to atherosclerosis (narrowed arteries). Because the flu can cause blood oxygen levels to drop to dangerously low levels, it can further reduce the supply of oxygen to the heart, causing a heart attack or cardiac arrest. Fortunately, getting an annual flu shot is associated with reduced risks of a heart attack and related cardiac events.