Meditações - time is a finite resource

The core problem with working longer hours is that time is a finite resource. Energy is a different story. Defined in physics as the capacity to work, energy comes from four main wellsprings in human beings: the body, emotions, mind, and spirit. In each, energy can be systematically expanded and regularly renewed by establishing specific rituals—behaviors that are intentionally practiced and precisely scheduled, with the goal of making them unconscious and automatic as quickly as possible.

“Ultradian rhythms” refer to 90- to 120-minute cycles during which our bodies slowly move from a high-energy state into a physiological trough. Toward the end of each cycle, the body begins to crave a period of recovery. The signals include physical restlessness, yawning, hunger, and difficulty concentrating, but many of us ignore them and keep working. The consequence is that our energy reservoir—our remaining capacity—burns down as the day wears on.

Intermittent breaks for renewal, we have found, result in higher and more sustainable performance. The length of renewal is less important than the quality. It is possible to get a great deal of recovery in a short time—as little as several minutes—if it involves a ritual that allows you to disengage from work and truly change channels. That could range from getting up to talk to a colleague about something other than work, to listening to music on an iPod, to walking up and down stairs in an office building. While breaks are countercultural in most organizations and counterintuitive for many high achievers, their value is multifaceted.

Tony Schwartz e Catherine McCarthy, Harvard Business Review