Measurement Has Its Limits: The Cookie-Radish Effect

 No willpower needed

I recently wrote about how measuring your own activity, using something as simple as a stopwatch in the shower, can pay off big time in behavioral change. (It can speed you up on tasks you tend to do slowly.) That said, I’ve recently run into a few people who take that concept much further. They schedule tasks for themselves in 10-minute intervals and constantly check to see whether they’re on time and on task. I’ve even talked to one colleague who suggested I do something similar.

Yikes! I can’t imagine being a slave to the stopwatch in that way. But I want to have a clearer reason why such a thing makes no sense for me. Something more than it just doesn’t feel right. So here it is:

When you force yourself to do something that takes a lot of effort or willpower, what you are actually doing is using the rational part of your brain (the part that handles executive functioning) to take over from the more emotional and instinctive part of your brain (the part that wants to do what feels right). Well, there’s a lot of research that suggests that most people have rational effort/willpower in limited quantities. Use too much of it and you’ll begin to run out.