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Ultradian Rhythm

Last updatedUpdated: by Simon Späti · CreatedCreated: · 1 min read · growing Note status Growing. Worked on quite a bit, still rough. Expect bullets, gaps and views that update. Estimated from edit history · 2 sessions over 7 months · 86 words · How my notes grow Recent changes 3 years ago +0 / −3 words 4 years ago published · 5 words

In chronobiology, an ultradian rhythm is a recurrent period or cycle repeated throughout a 24-hour day. E.g. the first 10 minutes of a 90-minute (Ultradian Rhythm) deep work block are always going to be hard. That’s okay.

In contrast, circadian rhythms complete one cycle daily, while infradian rhythms, such as the human menstrual cycle, have periods longer than a day.

This is also related to Deep Work, and how to get into it.

RW For Real Productivity, Less Is Truly More


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