Today, there is a growing emphasis on looking good, feeling good and living longer. Increasingly, scientific evidence tells us that one of the keys to achieving these ideals is fitness and exercises. Getting moving is a challenge because today physical activity is less a part of our daily lives. There are fewer jobs that require physical exertion. We have become a mechanically mobile society, relying on machines rather than muscles to get around. In addition, we have become a nation of

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... with more people spending their leisure time pursuing just that-leisure. Introduction Physical fitness is to be the human body what fine-tuning is to an engine. It enables us to perform up to our potential. Fitness can be described as a condition that helps us for better look, pleasant feel and do our best. More specifically, it is "the ability to perform daily tasks vigorously and alertly, with energy left over for enjoying leisure-time activities and meeting emergency demands. It is the ability to endure, to bear up, to withstand stress, to carry on in circumstances where and unfit person could not continue, and is a major basis for good health and well-being." Work efficiency is defined as the ratio of mechanical work to the increase in energy expenditure caused by physical activity. Thus, an improvement in work efficiency could be caused by an increase in mechanical work, a decrease in, or both. Managing a heavy workload requires an efficient work style. It is sometimes very hard to see as solution to the problem when a feeling of overwhelm abounds. To assess the level of efficiency, try to take a step back and look at work style to see where things could be improved. If you feel too engaged in the work, try asking someone who has seen your work style in action to offer their perspective.