If you’ve been sitting at the computer for more than an hour, take a deep breath.
Close your eyes.
Turn your head as far as you can, gently and slowly, to the left. Hold for a breath or two; if it hurts, you’ve gone too far. Do the same to the right. Repeat two more times.
Tip your head forward and touch your chin to your chest, gently and slowly again. Hold. Now look upwards as far as you can, gently and slowly. Hold. Repeat two more times.
Tilt your head to the right until you’re looking at the world sideways. If it hurts, ease up a little. Hold, then tilt to the left. Repeat twice more.
Now, make circles with your head – dip your chin to your chest, then roll your head to the right, then back, then left, then forward again. Do three circles, then reverse direction to do another three.
Breathe deeply. Open your eyes. Resume your regularly-scheduled program.