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EMF RESEARCH

EMF — March 31, 2025

A collection of research on Electromagnetic Frequencies (EMFs)

Radio Frequencies

Lighting

  • Artificial Light at Night and Cancer: Global Study.  Artificial light at night (ALAN) has been linked to an increased risk of cancers in body sites like breast and colorectum. The outcome measure was age-standardized rates (ASR) of cancers used Protected Light Area Pollution Indicator (PALI) and Protected Area Human Influence (PAHI).  Study found that PALI and PAHI were positively associated with ASR of all forms of cancer, and also the four most common types (cancer, lung, breast, and colorectal). The conclusion of this study said, “Artificial light at night is significantly correlated for all forms of cancer as well as lung, breast, colorectal, and prostate cancers individually. Immediate measures should be taken to limit artificial light at night in the main cities around the world and also inside houses.”

  • Exposure to room light before bedtime suppresses melatonin onset and shortens melatonin duration in humans.  The results of this study: “Compared with dim light, exposure to room light before bedtime suppressed melatonin, resulting in a later melatonin onset in 99.0% of individuals and shortening melatonin duration by about 90 min. Also, exposure to room light during the usual hours of sleep suppressed melatonin by greater than 50% in most (85%) trials.”

Conclusions:  “These findings indicate that room light exerts a profound suppressive effect on melatonin levels and shortens the body’s internal representation of night duration. Hence, chronically exposing oneself to electrical lighting in the late evening disrupts melatonin signaling and could therefore potentially impact sleep, thermoregulation, blood pressure, and glucose homeostasis.”

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