As we work in IT field, we spend most of our time sitting on a chair.We work 8 hours a day, 5 days a week, 50 week a year, a total of 2,000 hours a year. Assumed that we sit 70% of our working our, it is still 1,400 hours a year. I am not going to count the hours we spend sitting at home because it will rise to a huge number that may shock us.
What is my point?
Well, the health effects of sitting too much is not a myth, but a scientific fact. If you don't believe me, take a quick look at these articles: