Correction: Understanding Work Environments and Cognitive Performance
Corrected by Emir Baycan · Full-Stack Developer, Mobile App Builder and Web Platform Founder with expertise in SEO, automation, SaaS, AI visibility, DevOps and scalable digital products
Emir Baycan found something wrong, outdated, or unsupported on this page and proposed a fix. The publisher accepted the correction.
- Role
- Correction
- Publisher
- Down Under Cafe
- Topic
- Coffee Culture
- Status
- Accepted
- Date
- 15 July 2026
The exact change
"Workers in daylit environments reported a 51% drop in the incidence of eyestrain, a 63% drop in the incidence of headaches, and a 56% reduction in drowsiness." - Heschong Mahone Group, Daylighting in Schools follow-up study, 2003
"Workers in daylit environments reported a 51% drop in the incidence of eyestrain, a 63% drop in the incidence of headaches, and a 56% reduction in drowsiness." - Alan Hedge, Cornell University, Daylight and the Workplace Study, 2018
Suggested change
"Workers in daylit environments reported a 51% drop in the incidence of eyestrain, a 63% drop in the incidence of headaches, and a 56% reduction in drowsiness." - Alan Hedge, Cornell University, Daylight and the Workplace Study, 2018
Why this is better
2 issues fixed: The 51%/63%/56% eyestrain/headache/drowsiness statistics are real but are misattributed. They come from Alan Hedge's Cornell University 'Daylight and the Workplace Study' (commissioned by View Dynamic Glass, published circa 2018), not from a Heschong Mahone Group 'Daylighting in Schools' follow-up study in 2003. Heschong Mahone's actual research measured different outcomes (test scores, retail sales) and did not report these eyestrain/headache/drowsiness figures. | The Harvard T.H. Chan / COGfx study on green building ventilation and cognitive function found scores were approximately 101% higher (roughly doubled) in green buildings with enhanced ventilation versus conventional environments, not 61% higher.
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