Has working at the computer made you stiff? Release that stiffness in your neck, back, chest, arms and shoulders with five minutes of stretching you can do right at your desk. Tip: Use your abdominal muscles to keep your spine straight and tall for the duration; press pause to take time to complete each breath count. – courtesy Lime.com
wonderful video
I’m going to bookmark this one and try to remember to practice every day.
Useful! There are more (guided) exercises to do at your desk here:
http://www.daily-exercise.com/equipmentfree