take small breaks during your workday to release some of that muscle tension.Try walking around for a couple minutes, standing and doing stretches—anything to break up a full day of sitting on your bottom is good for you!
Avoid eye fatigue by resting and refocusing your eyes periodically. Look away from the monitor and focus on something in the distance. Rest your eyes by covering them with your palms for 10-15 seconds. Use correct posture when working. Keep moving as much as possible.