OptiBreak resources
Break & Ergonomics Glossary
Plain-English definitions of the terms behind screen health and break science.
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Microbreak: Definition, Benefits, and How to Use Them
A microbreak is a brief rest period lasting 30 seconds to 5 minutes. Learn about benefits, science, and how to implement them.
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The 20-20-20 Rule: Definition, Science, and Application
The 20-20-20 rule: every 20 minutes look 20 feet away for 20 seconds. Learn the science and how to apply it.
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Computer Vision Syndrome (CVS): Definition, Symptoms, and Management
Computer Vision Syndrome is a group of eye and vision problems from prolonged screen use. Learn symptoms and management strategies.
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Repetitive Strain Injury (RSI): Definition, Types, and Prevention
RSI is pain in muscles, nerves, and tendons from repetitive movements. Learn types, prevention, and management for computer workers.
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Ultradian Rhythm: Definition, Cycles, and Work Scheduling
Ultradian rhythms are 90-120 minute biological cycles affecting focus and alertness. Learn how to align your work schedule.
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Sedentary Behaviour: Definition, Health Risks, and Countermeasures
Sedentary behaviour is low-energy activity in sitting or lying postures. Learn health risks and countermeasures for desk workers.
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DSE Regulations: Definition, Requirements, and Compliance
DSE Regulations are UK workplace health laws requiring employers to protect screen workers. Learn requirements and compliance.
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Eye Accommodation: Definition, Fatigue, and Screen Work
Eye accommodation is how the lens changes shape to focus. Learn how screen work causes accommodative fatigue and how to prevent it.
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Muscular Fatigue: Definition, Mechanisms, and Computer Work
Muscular fatigue in computer work affects small stabilising muscles. Learn mechanisms and prevention through scheduled breaks.
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Attention Restoration Theory: Definition, Evidence, and Application
Attention Restoration Theory explains how natural environments and breaks restore directed attention. Learn the evidence and applications.