Sitting at a desk for several hours a day is a recipe for all sorts of pain and bodily problems. These stretches, developed by ergonomist Vivienne Fleischer, can help alleviate lower back pain without leaving you chair.
The stretch involves placing one ankle above your knee, placing one arm out in front of you and leaning forward until you've stretched your muscles. Switch arms and legs and repeat the process. The exercise is handy in that it doesn't require you to get up or have a lot of space, so if you're not able to leave your desk at work, you can still get some movement in.