The man should stand for three hours a day, because calcium goes out in urine. How much time have I been standing in a day?I am sitting in front of the personal computer now. Because I am clerical work when working part-time, I sit for a long time. I am using the car to go to school. I am not walking recently. I am not exercising. I do not drink milk so much. I am spending life so not good. I thought that moving even a little every day was important. I will exercise for the future.(101)