a little less and get up, move, walk around a little more. you may be surprised at how much healthier your body will be just by moving a little bit more.
the second thing you can do to become more mobile is to just stretch!
whenever you can, stand up and stretch–just like you would when you get up in the morning. walls and door frames are excellent for stretching and i’m going to go out on a limb here and assume you have access to plenty of these. grab hold of a door frame and turn away from it to stretch your chest. put your toes up on the wall, bend 