1. Hoofing It: Walking and/or running are two of the most popular activities for all ages, especially since walking is something most of us "have" to do, and since neither requires any special equipment. And they add that walking is an excellent activity for fitness "fanatics" of all ages, even those who may have cardiac conditions or other "inhibitory" ailments. Plus you can do it indoors, outdoors, or on a treadmill, the important thing is that you keep moving. Running will burn twice the amount of calories as walking but is also harder on your heart, joints and muscles. And for those already off to a running start, make sure you invest in the best shoes you can afford and that your shoe is comfortable and properly fits.

2. Stroke Your Ego: Doing the stroke or swimming is one of the best exercises for the entire body building not only muscle but physical endurance as well. If you happen to be a bit overweight or out of shape, you can start by doing some (supervised) aqua aerobics in a pool, which is generally easier on the joints.

3. Getting A Jump Start On Health And Fitness: Skipping rope is an inexpensive way to work out and you can do it practically anywhere. Not only does jumping rope tone and condition muscles, but also builds coordination. However, it can be hard on ankles, knees, feet, and back. And experts suggest looking for another exercise alternative if you already experience orthopedic problems.

4. Putting The Pedal To The Metal: Stationary or mobile, biking can be beneficial both indoors and out, as cycling build both muscle and stamina.

5. Twenty-Three SKI-do: Cross-country skiing is a great way to get some exercise and some fresh air during those cold winter months. Besides helping to generate heat, the relatively easy to learn sport with a low injury rate, also helps build endurance while working your upper and lower body, heart, and lungs.