Exercise & Mobility

Too much sitting and too little exercise may speed biological aging by as much as 8 years, suggests an American Journal of Epidemiology study. A group of 1,481 women (average age, 79) from a nationally-representative sample wore motion sensors for one week.

If you start exercise low on fuel, you could end up feeling weak and run out of steam. Or, you may simply feel hungry, making it hard to focus on your exercise. However, unnecessary snacking before a workout may make exercise uncomfortable and add calories you dont need, counteracting the calorie burn of your physical activity.

Self-reported physical activity rates tend to decrease with age, especially in people with chronic disease, according to a recent CDC telephone survey of randomly-selected U.S. adults age 50 and older.

Grapefruit as a weight loss wonder is a bit of an urban legend, and scientific evidence to support it is scarce. A recent systematic review on the topic included three moderate-quality clinical trials with a total of 250 obese men and women.

Physical activity tends to dip in bad weather. Skipping exercise for long stretches could cheat your health. "Maintaining your fitness level through regular exercise confers a multitude of benefits ranging from improved insulin sensitivity to better cognitive health," says Jennifer Sacheck, PhD, an associate professor at Tufts' Friedman School. "Exercise simply should be part of your routine - rain or shine and in cold or warm weather." If the season weakens your resolve to exercise,…

The current Physical Activity Guidelines for Americans recommend that you accumulate 150 minutes of moderate-to-vigorous physical activity per week, ideally in bouts of 10 minutes or longer. So, either longer or shorter sessions on your exercise bike can be beneficial. If you work at a higher intensity during 15-minute bouts and a slower intensity during the 30-minute bouts, they may end up having nearly equal physiological benefits.

For every 30 minutes you spend in sedentary activity, such as watching TV or doing computer work, take a break for 3 to 5 minutes to do light activity, say new physical activity guidelines from the American Diabetes Association published in Diabetes Care.

Just 30 minutes of walking, five days a week, can save you $2,500 a year in medical costs, according to a new study of more than 26,000 people.

Could an ancient Chinese mind-body practice help with knee pain from osteoarthritis? A new Tufts study reports that tai chi produces benefits similar to physical therapy for osteoarthritis patients.

Taking early steps to protect against cold and flu through diet and lifestyle can help the flu shot fight seasonal viruses. Here are 10 simple preventative measures to boost immunity.