Your back isn't designed for long hours of sitting, so learning to activate your core is crucial for long term health. In particular, your transverse abdominis has endurance fibres that help to keep your back supported and safe. This quick session will activate and build strength to keep you feeling great.
Find a quiet comfortable place to activate your core. If you don't have privacy at work, you may want to do this one at home. You'll need a chair or couch without wheels.