Does radiofrequency radiation impact sleep? A double-blind, randomised, placebo-controlled, crossover pilot study

Area of Science:

• Environmental Health
• Sleep Medicine
• Electromagnetic Fields

Background:

• Digital devices are common sources of Radiofrequency Electromagnetic Field (RF-EMF) exposure during sleep.
• Limited research exists on the impact of multi-night RF-EMF exposure from devices like baby monitors on sleep in real-world settings.
• Growing concerns about electromagnetic field sensitivity and widespread Wi-Fi device use necessitate investigation.

Purpose of the Study:

• To investigate the effect of 2.45 GHz RF-EMF exposure from a baby monitor on subjective and objective sleep measures in healthy adults.
• To assess the impact on sleep quality, electroencephalography (EEG), heart rate variability (HRV), and actigraphy.

Main Methods:

• A 4-week randomized, double-blind, crossover pilot study involving 12 healthy adults.
• Participants were exposed to either an active or sham baby monitor for 7 nights, followed by a crossover.
• Sleep was assessed using the Pittsburgh Insomnia Rating Scale (PIRS-20), EEG, actigraphy, and HRV.

Main Results:

• Subjective sleep quality significantly decreased during RF-EMF exposure compared to sham-exposure, as indicated by PIRS-20 scores.
• EEG power density significantly increased in gamma, beta, and theta bands during Non-Rapid Eye Movement sleep.
• No significant differences were found in HRV or actigraphy measures.

Conclusions:

• Exposure to a 2.45 GHz RF-EMF emitting device (baby monitor) may affect sleep quality and EEG patterns in some individuals under real-world conditions.
• Further large-scale studies with precise dosimetry are required to validate these preliminary findings.
• The study highlights potential impacts of common digital devices on sleep.