Does architectural lighting contribute to breast cancer?
Author Information
Author(s): Mariana G. Figueiro, Mark S. Rea, John D. Bullough
Primary Institution: Lighting Research Center, Rensselaer Polytechnic Institute
Hypothesis
The study investigates the role of architectural lighting in the incidence of breast cancer through its effect on melatonin production.
Conclusion
Quantitative knowledge about circadian light exposures is necessary to understand the causal relationship between melatonin and breast cancer.
Supporting Evidence
- Light exposure at night can suppress melatonin production, which is linked to breast cancer risk.
- Epidemiological studies suggest that night-shift work increases breast cancer risk, potentially due to melatonin suppression.
- Blind women, who experience less light at night, have a lower risk of breast cancer compared to sighted women.
Takeaway
This study looks at how the light in our buildings might affect our bodies and possibly lead to breast cancer by disrupting a hormone called melatonin.
Methodology
The authors reviewed literature on melatonin, light at night, and cancer risk, and reported photometric measurements of light exposure in women's environments.
Limitations
The study emphasizes the need for more quantitative data on light exposure and its effects on melatonin and cancer risk.
Participant Demographics
The study focuses on women and girls in modern societies.
Digital Object Identifier (DOI)
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