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for long, I usually feel soar in the neck and shoulders, which must be the signal given by the body. Some of my colleagues told me that the symptoms can be alleviated by simply sparing few minutes to take a cup of coffee in the restroom and stretch arms and legs. Also from the perspective of a doctor, it takes effect in improving blood circulation. In addition, I am thinking of climbing stairs instead of taking elevators. I remember when I visited a doctor last time, he told me that every single step we climb will help us increase lifespan for seven seconds. Finally, my one year membership with the fitness club near my office will due soon, but