Single-tasking on purpose

Do one thing at a time, fully, instead of half-doing several.

Why it works

What feels like multitasking is rapid task-switching, and each switch carries a cognitive cost — a residue of the prior task that degrades focus and slows the new one. Doing one thing at a time removes that switching tax, so the work is both better and, counterintuitively, faster, while the experience itself feels less frantic.

How to do it

1. Choose one task and close or hide everything unrelated to it.
2. Set a single, visible intention for the block ("just this email", "just this meal").
3. When the urge to switch arrives, note it and return rather than acting on it.

Evidence

Cognitive research robustly documents switch costs and the impairment of heavy media multitasking on attention and task performance, supporting one-at-a-time work. (rct)

Highly automatic tasks (walking, listening to music) combine fine; the cost applies to attention-demanding tasks.

Sources

• Monsell (2003), "Task switching", Trends in Cognitive Sciences
• Ophir, Nass & Wagner (2009), cognitive control in media multitaskers, PNAS

Common mistake

Believing you are the exception who multitasks well. Self-rated multitasking ability is largely uncorrelated with actual performance.