Exposure to light at night does not increase breast cancer risk, major new study suggests - The Institute of Cancer Research, London

The prospective analysis of 105,866 women provides evidence against the 40 year old proposal that night-time light levels and breast cancer risk are linked.

Long-Term Exposure to Nitrogen Dioxide Increases Risk of Breast Cancer - Dr. Pragnya Chigurupati

Light at night and the risk of breast cancer: Findings from the Sister study - ScienceDirect

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Women who get up early could halve risk of breast cancer say scientists - Bristol Live

Harvard study strengthens link between breast cancer risk and light exposure at night

Alcohol and Cancer Risk Fact Sheet - NCI

The truth about blue light: does it really cause insomnia and increased risk of cancer?, Health & wellbeing

Frontiers The relationship between tobacco and breast cancer incidence: A systematic review and meta-analysis of observational studies

Light at night and risk of breast cancer: a systematic review and dose–response meta-analysis, International Journal of Health Geographics

IJMS, Free Full-Text

Frontiers Exposure to outdoor artificial light at night and breast cancer risk: a population-based case-control study in two French departments (the CECILE study)