When: The Scientific Secrets of Perfect Timing

by Daniel H. Pink

First, our cognitive abilities do not remain static over the course of a day. During the sixteen or so hours we’re awake, they change—often in a regular, foreseeable manner. We are smarter, faster, dimmer, slower, more creative, and less creative in some parts of the day than others.

If there’s a single mega-point to Chapter 1, it’s this: Our brainpower changes in significant and predictable ways over the course of the day. I wish I’d learned this decades ago!