📖 Complete Guide · January 2026
Electromagnetic Waves:
Complete Guide 2026
Everything you need to know about electromagnetic waves: scientific definitions, sources of exposure, documented effects, legal standards, and 10 concrete actions to reduce your exposure starting today.
Sources: WHO/IARCANSES 2021NTP ProgramInterphone StudyANFRAbeille Law
WiFi, 4G, 5G, Bluetooth, microwaves... We are constantly surrounded by artificial electromagnetic fields. Understanding their nature, sources, and potential effects has become an essential civic skill.
💡 This guide will help you to:
- Simply understand what an electromagnetic wave is
- Identify all sources of exposure in your daily life
- Understand what science truly says — without alarmism or denial
- Know your rights and the French legal framework
- Implement 10 concrete, immediately applicable actions
Section 1 What is an Electromagnetic Wave? [Accessible Science]
An electromagnetic wave is a coupled oscillation of an electric and a magnetic field that propagates through space. It travels at the speed of light, passing through vacuum and matter.
| Wave Type | Frequency | Examples | Ionizing? |
|---|---|---|---|
| Extremely Low Frequencies | 0–300 Hz | High-voltage lines, 50 Hz current | No |
| Radiofrequencies | 300 Hz–300 GHz | WiFi, 4G, 5G, Bluetooth, FM radio | No |
| Infrared | 300 GHz–400 THz | Heat, remote controls | No |
| Visible Light | 400–800 THz | Natural and artificial light | No |
| Ultraviolet | 800 THz–30 PHz | Sun, UV lamps | Partially |
| X-rays / Gamma rays | >30 PHz | Radiology, nuclear | Yes — dangerous |
🔑 The fundamental distinction
WiFi, 4G, 5G, and Bluetooth waves are non-ionizing radiation — they cannot break chemical bonds in DNA. Their mode of action on the body is therefore different from ionizing radiation. This does not mean they have no biological effect, but that their potential risks are of a different nature.
Section 2 Sources of Waves in Your Daily Life [Mapping]
| Source | Frequency | Exposure |
|---|---|---|
| Smartphone (call) | 800 MHz–3.5 GHz | 🔴 Very high — direct head contact |
| WiFi box / router | 2.4 and 5 GHz | 🟠 High — continuous 24/7 |
| Tablet on lap | 2.4–5 GHz | 🟠 High — abdomen contact |
| Connected watch | 2.4 GHz BT | 🟠 High — continuous on wrist |
| WiFi baby monitor | 2.4 GHz | 🔴 Critical — 50 cm from crib |
| 5G relay antennas | 700 MHz–3.5 GHz | 🟡 Low — significant distance |
| Microwave oven | 2.45 GHz | 🟠 Medium — possible leaks |
| Linky meter | 50–90 kHz (PLC) | 🟡 Low to moderate |
Section 3 Health Effects: What Science Says [Factual Analysis]
⚠️ Official position: precautionary principle
ANSES and WHO acknowledge documented biological effects at levels below legal thresholds, without direct causality being proven for all studied pathologies. The precautionary principle applies.
| Documented Effect | Level of Evidence | Primary Source |
|---|---|---|
| Melatonin reduction (sleep) | 🟠 Moderate | Several independent studies |
| Cellular oxidative stress | 🟠 Moderate | ANSES 2021 |
| Blood-brain barrier permeability | 🟡 Limited | Pr Salford (Sweden) |
| Effects on male fertility | 🟡 Limited | In vitro and animal studies |
| RF tumor association (Group 2B) | 🟠 Moderate | IARC/WHO 2011 |
| Electrosensitivity (EHS) | 🟠 Recognized | ANSES — 3-8% of population |
Section 4 Standards and Regulations [French Legal Framework]
| Standard / Law | Content | Year |
|---|---|---|
| ICNIRP Limits | SAR max 2 W/kg (head/trunk), 4 W/kg (limbs) — adopted by EU and France | 1998 / 2020 |
| Abeille Law | EMF sobriety principle — WiFi deactivatable in primary schools | 2015 |
| Transparency Decree | Mandatory publication of antenna exposure levels | 2013 |
| Resolution 1815 CE | Council of Europe: enhanced precaution, especially for children | 2011 |
| ANSES 5G Report | Request for additional specific 5G studies | 2021 |
| Decision 2025/1760 CE | New SAR testing requirements under real conditions | 2025 |
Section 5 How to Reduce Your Exposure: 10 Concrete Actions
1
🎧 Wired hands-free kit for all calls
- 90 to 99% reduction in cerebral exposure during calls
- Wired kit (not Bluetooth — its own emission)
- Never hold the phone against your ear
2
🌙 Airplane mode at night
- Cuts all radio emissions simultaneously
- The alarm works in airplane mode
- Ideal: phone in another room
3
📡 Turn off WiFi at night
- Programmed outlet (~€15): WiFi automatically off 10 pm-7 am
- 8 hours without WiFi = 35% reduction in daily exposure
- No impact on network quality the next day
4
🔌 Prioritize Ethernet cable
- Zero WiFi emission for wired computers
- Deactivate computer's WiFi when connected via Ethernet
- Wired mouse and keyboard — no Bluetooth
5
📏 Respect distances
- Tablet and computer: on a table, never on your lap
- Smartphone: never in your pants pocket
- Router: at least 2 meters from living and sleeping areas
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6
👶 Enhanced protection for children
- No smartphone before age 3 — tablet in airplane mode only
- Analog audio baby monitor (not WiFi) for infants
- WiFi off at night in all bedrooms
7
🏢 Optimize your workspace
- Wired computer (Ethernet) if possible
- Phone placed at a distance on the desk, not in your hands
- Wired headset for video conferences
8
⚡ Audit your home
- Field detector (~€50-150): identify the most exposed areas
- Free ANFR measurement for outdoor antennas
- Reposition the router away from bedrooms
9
🛡️ Wear a certified protective device
- Wave Protect bracelet, brooch, or pendant — NEXIO certified
- Complementary protection to reduction actions
- Wear 24/7 for continuous protection
10
📚 Stay informed
- Regularly check anses.fr for scientific updates
- Follow regulatory developments (5G, new SAR standards)
- Share this information with your loved ones
Section 6 Should You Be Afraid? [Balanced Conclusion]
💡 Our position at Wave Protect France
- Radiofrequencies (WiFi, 4G, 5G, Bluetooth) are classified as "possibly carcinogenic" (WHO Group 2B) — neither certain nor definitively excluded
- Non-thermal biological effects remain debated but documented
- Children are more vulnerable: their developing brains absorb more waves
- Simple actions can significantly reduce exposure without giving up technology
- Our patented and NEXIO tested devices provide measured complementary protection
FAQ — Frequently Asked Questions
Is WiFi more or less dangerous than 4G?
Both use similar frequencies (2.4 GHz and 5 GHz for WiFi, 700 MHz–3.5 GHz for 4G/5G). The main difference is distance: your WiFi router is often a few meters away, while your smartphone can be pressed against your ear. Cerebral exposure during a mobile call is therefore much higher than WiFi exposure.
Do legal limits completely protect us?
ICNIRP limits are based on short-term thermal effects. Independent researchers point out that non-thermal biological effects have been documented at levels below legal limits. ANSES recommends applying the precautionary principle in addition to respecting standards.
Can I check the exposure of antennas near my home?
Yes. ANFR offers an interactive map on anfr.fr showing the location of all relay antennas in France. Exposure measurements can be requested free of charge for your address.
📖 Additional Articles — Wave Protect France Blog
Protecting Children from Waves: Complete Guide for Parents
Electrosensitivity (EHS): Symptoms, Causes, and Solutions
10 Actions for Better Sleep Without Electromagnetic Waves
Wave Protect vs. Competitors: Technology and Patent
🛡️ Our Tested & Certified Protection Devices
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Last updated: January 2026 ·
Sources: WHO/IARC 2011, ANSES 2021, US NTP Program 2018, Interphone Study 2010, ANFR, Abeille Law 2015 ·
Author: Wave Protect France Team
Wave Protect France — 5 ter rue de la Gaucherie, 18100 Vierzon — contact@wave-protect.fr
This article is for informational and educational purposes. It is not a substitute for medical advice.
Wave Protect France — 5 ter rue de la Gaucherie, 18100 Vierzon — contact@wave-protect.fr
This article is for informational and educational purposes. It is not a substitute for medical advice.
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