Try this: The next time you walk (even from the car to the office), focus on your breath. Match the number of steps for your inhalation with the number of steps for your exhalation. For example; Inhale with steps R1, L2, R3, L4, R5, L6. Exhale with steps R1, L2, R3, L4, R5, L6. That’ll keep thoughts from stressing you; not to mention regulating your heart rate and your blood pressure.