The Cardio Component
While cardiovascular exercise is an important component of any workout fitness experts warns those who love to go to the gym against becoming dependent on the treadmill.  Instead, occasionally switch from jogging to cycling to an elliptical machine.  When running, go harder for a shorter distance on some days and slower for a longer distance on others.  As a general rule of thumb, you should be working hard enough to walk, but with some effort.

Staying On Your Feet
Maintaining balance is essential to aging gracefully. Nasty falls that result in broken hips or fractured bones can sideline even the most adventurous boomer. Luckily, improving balance can be done in just a few moments at home. At home, put your hand on the back of a chair–a wall will do as well–and stand on one foot long enough to stay balanced.  As you feel more comfortable, progress to two fingers and then none, of improving balance.

Lean and Strong
Age is particularly unkind to your muscles. In its 40s, the body begins losing a quarter pound of muscle per year, which can increase during periods of low physical activity. Muscle strength is not only flattering to the physique, it is also important to your long-term health since it leads to improved balance and joint stability as well as stronger bones. Use weights, a resistant exercise band or a medicine ball for strength building exercises two days a week.