To improve your heart and lung fitness, aim for 30 to 60 minutes of aerobic exercise three to four times a week.

You can't walk across a room without huffing and puffing. Your arms get tired unpacking a bag of groceries. You're carrying more and more excess body weight. And you can't remember the last time you got any real exercise.

You know it's important to stay active but still find yourself falling back on old habits. What can you do? Planning for exercise isn't hard if you make it a priority.

It is always important to talk with your doctor before starting an exercise program, particularly if you have certain health conditions.

A training log helps you organize and save information about your exercise routine so you can work toward your important goals.

You can lose weight by dieting, exercising, or a combination of both. Including exercise into your daily routine offers other benefits besides weight control.

The benefits of dancing go well beyond heart health and physical fitness. Dancing, especially group dance activities, provides opportunities for people of all ages to be socially and mentally engaged, as well.

Lack of physical activity has clearly been shown to be a risk factor for cardiovascular disease.

Although aerobic workouts like walking or running are important, they can’t take the place of strength training when it comes to building and preserving muscle.

Got half an hour? Then you have time to boost your heart health and manage your weight.

Walking is easy because you can do it almost anywhere and at any time. It also offers a range of health benefits.

Starting as early as your 20s and throughout your 30s, you'll naturally start to lose muscle -- and gain fat at a rate of about 2 percent per decade, especially if you have a sedentary job or lifestyle.