After 90 min: Consistently enter and maintain 4+ hour deep focus sessions with 90%+ quality output
Enter deep focus and produce quality work consistently
After 90 min: You'll complete demanding work in 90 minutes that previously took all day.
What you need
The 90-Minute Plan
Remove distractions. Phone off. Notifications off. Close browser tabs. Set timer for 90 minutes.
Clarify what 'done' looks like. Write 3 outcomes for this session. Begin immediately.
First 15 minutes hardest. Push through. Brain protests change. By minute 20, flow emerges.
Resist urge to check phone. One task at a time. If stuck, switch briefly then return.
Acknowledge what you accomplished. Take 15-min break. Movement, water, no screen.
Ultradian rhythms peak every 90 minutes; work with biology, not against it.
Keep Going
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