Focus
Ultradian Focus Cycle
Ultradian focus cycles are ~90-minute attention peaks followed by short dips—plan deep work in one cycle, then take a real break.
An ultradian focus cycle is a roughly 90-minute peak attention window followed by a 15–20 minute recovery dip—brain rhythm, not personal failure. Align deep work to one cycle, then take a real break before the next.
Stacking caffeine across dips fights biology.
Common questions
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How long is an ultradian focus cycle?
About 90 minutes of strong focus then 15–20 minutes of lower alertness for many people. Protect the break—movement, hydration, no slides—to reset the next cycle.
Related terms
Put Ultradian Focus Cycle into practice
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