3. Climb to the top
Reinvigorate your afternoon with a brisk walk up and down the office stairwell. Over the course of a few weeks, try to build up your momentum by increasing the number of times you climb up and then down. Before you know it, you’ll be ready for all 1,576 steps of the annual Empire State Building’s Run-Up. If stairs aren’t your thing, try stretching or going for a walk outside.