CONCEPT
Cyclical Engagement
The core Selyean prescription for AI-augmented work: ninety minutes of focused engagement followed by twenty minutes of genuine recovery — a calibration to ultradian rhythms that keeps stress in the zone of adaptation rather than pushing it into depletion.
Cyclical engagement is the operational translation of Selye's framework into a workflow structure. Because the stress response evolved to operate in cycles of mobilization and recovery, and because AI tools eliminate the natural pauses that previous workflows provided, sustainable AI-augmented work requires the deliberate imposition of cyclical structure. The specific calibration — ninety minutes of focused engagement followed by at least twenty minutes of genuine cognitive rest — matches the ultradian rhythm of cognitive alertness. The recovery interval is not optional downtime but the biological necessity that converts the engagement into growth rather than depletion. During the recovery, the parasympathetic nervous system activates, cortisol begins its descent, and the default mode network performs the consolidation that focused attention cannot. The cycle must be genuine — rest filled with different productive interaction (another tool, another screen) does not count as recovery.
In The You On AI Field Guide
The ninety-minute structure matches Nathaniel Kleitman's basic rest-activity