Decision Fatigue

Decision fatigue is a phenomenon where the quality of decisions deteriorates after a long session of decision-making, as the brain's energy reserves become depleted over the course of the day.

Explained through the metaphor of 'the brain's biological fuel,' Decision Fatigue is a critical concept in psychology. It describes how each decision made throughout the day drains the brain's energy, which is a finite resource. Much like physical muscles tire, the mental machinery for decision-making also gets exhausted, shifting into a 'low power mode.'

When decision fatigue sets in, the brain typically reacts in one of two ways: either by acting impulsively (e.g., ordering pizza while on a diet) or by completely avoiding decisions (e.g., falling asleep while watching Netflix). The article cites the 'Frightening Research' which examined the impact of judges on prisoners' parole decisions. This study showed that judges tended to make more unfavorable decisions later in the day or before lunch, as their decision-making energy waned. The practice of leaders like Steve Jobs and Mark Zuckerberg wearing the same clothes every day is also explained as a strategy to conserve this valuable decision-making energy for more crucial matters.