There are many consequences to living a sedentary lifestyle and humans were not meant to sit and do nothing for many hours a day. It is a privilege and to be able to be in a leisurely position for extended periods of time. Whether it is sitting in an office at work, extensive hours of playing video games, or watching television, all of these behaviors are unnatural.
https://www.juststand.org/the-facts/
https://greatergood.berkeley.edu/article/item/how_modern_life_became_disconnected_from_nature
