Wireless Waves and Health: Exposure Levels and Safety

How Strong Are Wireless Waves?

Wireless wave strength is measured in watts per square meter (W/m²). Power density decreases with the square of distance from the source. A cell phone’s power density is ~0.001 W/m²—far lower than a microwave oven (~1000 W/m²).

Do Wireless Waves Damage Health?

No scientific evidence shows wireless waves harm human health. Reported symptoms (headaches, nausea) are likely due to the placebo effect. The WHO states no convincing evidence links radiofrequency fields from wireless phones to adverse health effects, but recommends reducing exposure (e.g., speakerphone, hands-free devices).

Tips to Reduce Exposure

• Use speakerphone or hands-free devices.
• Keep phone away from body when not in use.
• Avoid living/working near cell towers.
• Use wired internet instead of Wi-Fi.