Use a caffeine cutoff as a simple decision rule to protect sleep quality.
Caffeine has a calendar even when you do not. Immediate benefit, delayed cost The useful part of caffeine is obvious: more alertness now. The hidden part is timing. A late dose can interfere with the sleep that tomorrow's performance depends on. Decision rules reduce negotiation A cutoff turns a repeated debate into a rule. Rules are useful when the tired version of you is not the best strategist. Replace the function Do not simply remove the afternoon drink. Replace its function with light, movement, a task switch, or a planned stop so your system still has a response to low…
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