## TL;DR

Sustained concentration is a trainable skill eroded by modern distraction culture. Core techniques: Pomodoro (25min focus + 5min break), deep work blocks (2-4h uninterrupted sessions), flow state optimization (clear goals + challenge-skill balance). Environmental design: digital minimalism, dedicated workspace, single-tasking over multitasking. Attention is a finite resource requiring deliberate management.

## Core Explanation

Deep work protocol: schedule blocks (minimum 90 minutes), eliminate shallow work during blocks, embrace boredom (avoid constant stimulation), quit social media (not essential). Pomodoro adaptation: adjust interval to task type (50/10 for deep work, 25/5 for routine). Flow triggers: clear immediate goals, immediate feedback, stretch (just beyond comfort zone), autonomy, focused attention. Attention restoration theory (Kaplan): nature exposure restores directed attention. Digital hygiene: notification discipline, single-screen focus, scheduled email/social media windows.

## Further Reading

- [Deep Work](https://www.hachettebookgroup.com/titles/cal-newport/deep-work/9781455586691/)
- [Flow (Csikszentmihalyi)](https://www.harpercollins.com/products/flow-mihaly-csikszentmihalyi)