Ultradian Rhythms: How 90-Minute Focus Blocks Changed Everything (TPS613)

About this episode

This episode explores the science of ultradian rhythms and the effectiveness of 90-minute focus blocks in enhancing productivity.

Ever feel like your focus just disappears after an hour of work? It’s not laziness—it’s biology. In this episode, we dive deep into the science of ultradian rhythms and why the popular “90-minute focus block” is both powerful and often misunderstood. We’ll separate productivity mythology from real biology, showing you how to identify your own […]

People in this episode

Host: Asian Efficiency

Topics covered

• ultradian rhythms
• focus blocks
• productivity
• biology
• work habits

Keywords

• ultradian rhythms
• 90-minute focus block
• productivity
• focus
• work biology

Mentioned in this episode

Books & works: Ultradian Rhythms: How 90-Minute Focus Blocks Changed Everything

More episodes of The Productivity Show

• The Case for Strategic Laziness · June 10, 2026 · 9 min
• When AI Makes You Less Productive: 7 Warning Signs (TPS616) · June 8, 2026 · 53 min
• Find Your Life Leverage and Finally Focus · June 3, 2026 · 8 min
• The “Have It All” Trap (And How to Escape It) (TPS615) · June 1, 2026 · 46 min
• How to Get Your Best Work Done Without Working Harder · May 27, 2026 · 9 min
• The Productivity Stack: Apps and Tools We Actually Use Every Day (TPS614) · May 25, 2026 · 55 min