Author and CEO of the Energy Project Tony Schwartz recently wrote about the "personal energy crisis." He wrote that we need to learn to manage our energy differently, not just our time. And he pointed out that the pressure to stay forever connected and “on top of things” has taken a toll on the time we once instinctively devoted to renewing and recharging. He went on:
When fatigue sets in over the course of a day, we all increasingly and unconsciously rely on emergency sources of energy: adrenalin, noradrenalin and cortisol. In this aroused fight-or-flight state, our prefrontal cortex, which helps us think reflectively and creatively, begins to shut down. We become more reactive, reflexive and impulsive.
For me, the witching hour is 4 p.m. On many days, I become useless and even dangerous at that hour. I'm at my worst, a snarling, ill-tempered fool. I've learned to avoid making decisions or having important calls any time between 3:30 and 4:30 p.m. I've discovered I say lots of stupid things around that time-- things that have unnecessarily damaged my business.
Schwartz pointed to a recent study of airline pilots. The study discovered that when pilots get a nap of just 30 minutes in long-haul flights, they experience a 16 percent increase in their reaction time, in contrast to a 34 percent decrease in reaction time among non-napping pilots over the course of a flight.