- Get enough sleep. - Exercise (even walking) to keep the blood flowing well. - Eat right & drink water throughout your work day. - Eliminate distractions (H

- Get enough sleep. - Exercise (even walking) to keep the blood flowing well. - Eat right & drink water throughout your work day. - Eliminate distractions (HN) and arrange regular periods of silence each day(eg. no radio or podcasts on my commutes). - Maintain GTD-esque dump buckets for stuff that shouldn't be stored in your head. Get those things out of your head and into your system so that your brain can more easily focus on what needs to be done.