Everyone who works in the office usually feels pain in their back and neck because they sit too long in the office chair. You can use the herman miller size chart so you can get a comfortable office chair. Comfortable office chairs can make your work more optimally.
You can also do some of these movements where you work to avoid feeling sore in the office. you can do a shrugging motion. This movement is useful for relaxing the tightened shoulder muscles because of overwork. The trick, sit in a sturdy position. Lift your shoulders to ear level while taking a deep breath. Hold a few moments then return to the original position while exhaling.
You can also intersect this movement by stretching the neck muscles to the side, forward and back. Do this movement until you feel your shoulder is more comfortable. Small movements can make your body more relaxed.