I'm so pushy [220 push-ups, 20 every hour]
Why?
...among other things...
"Turns out, the secret to retaining the highest level of productivity over the span of a workday is not working longer — but working smarter with frequent breaks," [source: http://t.ly/Ztdt]
"Not all breaks are created equal. To get the full benefit of a break, you must completely disconnect from work." [source: http://t.ly/b7lv]