Heart Health Archive

Up to 30% of Americans have above-normal levels of triglycerides, which many studies have linked to a higher risk of heart disease. Lifestyle changes that can lower triglycerides include losing weight if needed; avoiding simple carbohydrates, sweets, and alcohol; cutting back on saturated fats; and doing regular exercise. For people whose levels remain high (especially those at risk for heart disease), medications such as fibrates or icosapent ethyl (Vascepa) may be helpful.

A heart rate below 60 beats per minute, called bradycardia, is fairly common in people older than 70. The most common permanent cause is age-related degenerative changes in the heart's conduction system. Previous heart problems, including a heart attack or heart surgery, make the problem more likely. Medical issues including sleep apnea, hypothyroidism, and certain medications can also cause bradycardia. People experiencing a low heart rate and symptoms such as feeling dizzy, lightheaded, fatigued, or breathless should seek medical care right away.

Sleep problems such as insomnia, sleep apnea, and periodic limb movements can disrupt sleep. A lack of sleep or fragmented sleep can prevent people from getting enough restorative deep sleep and may cause unhealthy blood pressure surges. These problems may increase the risk of cerebrovascular disease (including stroke and unrecognized silent strokes) and cognitive issues.

People who routinely exercise far more than the federal activity guidelines recommend will likely reap heart and longevity benefits. But they should be sure not to neglect other heart-healthy habits, such as getting routine check-ups, keeping tabs on their risk factors, following a healthy diet, and paying attention to heart-related symptoms.

A thoracic aortic aneurysm (a weakened area in the wall of the upper section of the aorta) may require surgical repair if it grows too large. Aneurysms in the area called the descending aorta can sometimes be repaired with a less invasive endovascular technique.

A normal pulse rate is between 60 and 100 beats per minute. Possible causes of an elevated pulse include fever, anemia, anxiety, or an overactive thyroid. Other possibilities include too much caffeine, decongestants, or being out of shape.

Large studies have not found evidence of higher rates of heart attacks, strokes, or other cardiovascular diseases in people who eat up to one egg per day.

Orthostatic hypotension is a drop in blood pressure when standing up. If it ever leads to loss of consciousness or a fall, it can be dangerous.

Metformin, a medicine prescribed to treat type 2 diabetes, also has cardiovascular benefits and is used off-label to treat other conditions. Interest is growing in its potential to help lower risks for other serious health problems and even slow aspects of aging, but which of these benefits, if any, apply to people who do not have diabetes?

I?ve read that a normal resting heart rate is between 60 and 100 beats per minute. Mine runs around 45 to 48. Should I be concerned? I have been a runner for 42 years and have completed seven marathons.