Decision Fatigue

March 2026

• Mar 6, 2026ConceptsDecision Journaling for Better Judgment Over TimeLevav and colleagues tracked 1,067 car purchases at German dealerships and found buyers deliberated carefully over early options then increasingly accepted defaults by the end of the sequence. Linder and colleagues found inappropriate antibiotic prescribing rose 26 percent in afternoon appointments across roughly 21,900 visits. This page is careful about the contested science: the famous parole board finding is reported as an association, not a measured depletion state.26 MIN34.5k

September 2025

• Sep 11, 2025IdeasSaaS Ideas Solving Decision FatigueSeven decision-fatigue product concepts get pricing, target buyer and moat: meal planning, meeting prep, product prioritization, decision journaling, workflow automation, creative presets and an analysis-paralysis tool. The case rests on Danziger, Levav and Avnaim-Pesso's study of 1,112 judicial rulings, where parole was granted in roughly 65 percent of cases at the start of a session and roughly 5 percent just before a break.47 MIN41.0k

August 2025

• Aug 18, 2025IdeasUnderstanding Decision Overload and Its EffectsA 2011 study of 1,112 Israeli parole rulings found favorable decisions ran about 65 percent at the start of a session and fell to nearly zero by the end, resetting after a food break, though later critiques argue case ordering partly explains it. Baumeister's work describes the same depletion: as capacity drains, the brain defaults to the easiest option or postpones. Hundreds of micro-decisions crush the few that matter.21 MIN73.3k

November 2023

• Nov 18, 2023ConceptsWhat Is Decision Fatigue and Its EffectsBaumeister's 1998 radish study had participants resist cookies then quit sooner on an unsolvable puzzle, and the glucose extension claimed a sugary drink could restore self-control. Direct tests produced inconsistent results and re-analysis raised publication-bias concerns, so glucose is no longer supported as the fuel. Covers the Danziger parole findings, choice overload, and status quo bias.14 MIN11.4k