Does your neck feel stiff if you sit for too long? Why not try stretching? Here's a simple exercise you can do after spending a long time in front of your computer. Stretching doesn't take much time; you can do it anytime throughout the day!
https://global.kyocera.com/we_love_engineers/series/kyocera-tv/office-wellness001.html
https://global.kyocera.com/we_love_engineers/series/kyocera-tv/office-wellness001.html