Ready to find out what makes you most productive? As mentioned in the CNET Magazine article, "How to hack the perfect workday," boosting efficiency at work can be attributed to a number of lifestyle factors. Sleep, coffee intake, time spent walking the dog, and exercise can all make you more (or less) productive.
The only way to find out is to keep track of your life. Here is a self-tracking template you can use to find correlations between the things you do outside of the office and your work.