Healthy aging and longevity Archive

Try some low-impact activities to ease into an exercise routine.

You know that regular exercise is good for your heart. But only about half of American adults manage the 2.5 hours per week of moderate exercise (such as brisk walking) recommended by the federal physical activity guidelines. Being too busy is a common excuse, but there are bona fide reasons for not exercising. If you're recovering from a heart attack, are overweight, or are simply out of shape, 30 minutes of exercise a day may feel out of reach.

Q. What is better for my heart—a fast run on the treadmill for 10 minutes or 30 minutes of light cycling on a machine?

A. The benefit of exercise on heart health depends on the dose; in other words, the more the better. So, my answer to your question is "Why not do both?" Exercise of virtually any kind prevents heart attacks, strokes, high blood pressure, and diabetes.

Don't rush into it, but don't wait longer than you need to.

More than 700,000 Americans will have one or both knee joints replaced this year, usually because of damage from wear-and-tear arthritis. Age itself is no barrier, and about half of total knee replacements go to people 65 and older. Replacing a joint damaged by osteoarthritis helps men stay active and independent.

Whole grains, including brown rice, are part of a healthy diet. However, health advocates have raised concerns about the tiny amount of arsenic that rice plants absorb from the soil. Also, a handful of studies have linked rice consumption to cardiovascular disease, although the evidence is preliminary and inconsistent. But now rice eaters can rest a little easier, thanks to a study in The American Journal of Clinical Nutrition.