Have you ever started writing a report only to check your email mid-sentence, reply to a Slack ping, skim a calendar invite, and then somehow end up scrolling LinkedIn? You’re not broken—you’re just caught in a pattern your brain struggles to escape. Multitasking feels productive, but research shows it can cut efficiency by up to 40%. So why do we multitask even when we know it drains us? The surprising answer lies in neuroscience, specifically the Zeigarnik Effect.
In the 1920s, psychologist Bluma Zeigarnik discovered that unfinished tasks linger in our minds like open browser tabs. This “mental tension” explains why your brain keeps nudging you about that half-written email or undone task. Psychologist Ari Tuckman adds that our attention system is dynamic, shifting rapidly throughout the day. Without structure, your brain reacts to every open loop, tricking you into switching constantly. Multitasking isn’t strategy—it’s avoidance. You either freeze (overwhelmed) or overcompensate (doing everything at once), leaving you exhausted yet unfulfilled.
The good news? There’s a way to calm the chaos: timeboxing. Timeboxing means scheduling specific blocks of time for specific tasks—like booking a meeting with yourself. By assigning a task a home in your calendar, you signal to your brain: this will get done. That simple act closes the Zeigarnik loop, giving your mind permission to let go. Instead of reacting to endless distractions, you intentionally design your day. Timeboxing transforms multitasking into focus, clarity, and control.
Getting started doesn’t require fancy tools—just a calendar and commitment.
Brain dump open tasks: Write down everything nagging your attention.
Block time for each: Schedule tasks realistically, adding buffers.
Add details: Include notes, context, or prep reminders.
Stick to the time, not perfection: The goal is to show up, not finish everything.
Digital planners like Sunsama or even Google Calendar make this seamless by connecting your tasks, notes, and schedule. Over time, one small daily timebox grows into a system that keeps you intentional instead of reactive. Remember: multitasking isn’t a flaw—it’s your brain trying to protect you. Timeboxing gives it the structure it craves, so you can finally feel in control.
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