After sitting for a long time, 1-2 years, you will find that your waist is getting fatter and your ass is getting bigger and bigger. This is not only fat, but also because of sitting for too long, the pelvis has begun to deform slightly.
Then there is shoulder and neck pain, and sometimes shoulder pain is really difficult to lift. Once we went to a yoga class, the teacher asked us to do an action that only hurt for three seconds. The teacher said that people who can't keep this action 10 seconds have shoulder problems. I looked at it and basically all the office workers confessed.
And many office workers feel very tired every day at a young age. No spirit, always lack of sleep. These are typical sub-health states.