What kinds of decisions get worse before you notice you’re sleep-deprived?
What kinds of decisions get worse before you notice you’re sleep-deprived? Why “I’m fine, just a bit tired” is quietly steering your choices off-course. Big picture framing Before you realize you’re sleep-deprived, the first thing to slip isn’t your IQ—it’s your judgment. Sleep-deprived decisions tend to degrade in subtle domains: how you read people, weigh risks, and prioritize your time. You still feel more or less normal, which makes these shifts easy to miss and hard to correct. This post breaks down the early, invisible decision costs of lost sleep—plus what research suggests, why people differ, and how to build safeguards—so you can spot problems sooner and avoid “how did I think that was a good idea?” moments. The invisible cost of being “just a little tired” Most people imagine sleep loss shows up as obvious mistakes: nodding off in meetings, forgetting basic facts, making glaring errors. In reality, the earliest damage is to decisions that rely on ...