The Impact of Light Intensity in Home Workplaces on Remote Workers' Health

Inclusion Criteria

• •Have an occupation of a dayshift (i.e., occurring between 6 AM and 8 PM) remote office worker, working from home for five days (Monday→Friday) a week with a maximum of 12 hours per day.
• •Aged 18-65
• •Good health \[self-reported medical history\]
• •Female or male
• •No evidence of sleep disorders \[PSQI scores \>5 are excluded\]
• •No extreme chronotypes (extreme owl or lark) \[reduced MEQ scores \>27 or \<11 are excluded; typical bedtime between 8 PM and 2 AM\]
• •Non-smoker
• •Not abusing alcohol \[AUDIT scores \>19 are excluded\]
• •Not experiencing depression \[CES-D scores \>27 are excluded\]
• •Best-corrected visual acuity of 20/200 or higher
• •Normal color vision \[as per Ishihara's Tests for Colour Deficiency\]
• •No current or planned use of light therapy or light-altering devices (e.g., blue-blocking and/or tinted glasses and contact lenses)
• •No planned upcoming travel during the study participation period
• •Not pregnant