Can LED lights cause cancer?

Published: 16.1.2023

Modified: 28.2.2025

Reading time: 9 minutes

Author name: Janne Halttu

Summary

LED lights do not directly cause cancer, more research needed
Artificial light at night can disrupt circadian rhythms
Circadian rhythm disorders may increase cancer risk
Blue-enriched LED light increased breast cancer risk in rats
Use of night lights may be associated with a higher risk of cancer

Janne Halttu

Janne Halttu Owner

LedStore.fi entrepreneur who has built 4 detached houses and renovated several properties. 20 years of construction experience has given me a lot of knowledge about structures, and electrical work for several houses. I have worked with LED lighting for over 10 years. I am an expert in Led lighting, I write articles and I am a lighting designer. I often help clients with electrical and structural issues related to lighting and house construction.

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