Fear of Wi-Fi and Electromagnetic Fields

What provocation trials show about electrosensitivity

The design is plain enough. Take people who report reacting to exposure, expose them on some trials and not on others, and keep everyone blind to which is which. A 2007 study took seventeen people who had shown symptoms in an open test and handed them real mobile phones and inert ones. The discomfort arrived either way, in much the same proportion, which points at psychological mechanisms rather than at the handset.

Rubin and colleagues kept a running total. By their 2010 follow-up review it stood at forty-six double-blind experiments covering 1,175 people who identified as sensitive. No review in that literature, theirs or anyone else's, has found well-built evidence that exposure causes the symptoms. What the accumulated trials do support is the nocebo effect: belief in exposure predicts the reported symptoms far better than exposure does.

This is where the term parts company with radiophobia, which it is constantly filed beside. Ionising radiation does harm a body at high enough exposure, so the fear of it overshoots a real hazard. Non-ionising fields have no such mechanism to overshoot.

Which symptoms get attributed to electromagnetic fields

No symptom is specific to it, which is part of the diagnostic problem. Reports gather headache, fatigue, stress, disturbed sleep, prickling and burning skin, rashes and aching muscles, and in bad cases the whole set is disabling and genuinely distressing. Surveys of sufferers have found no consistent pattern within it, and the prevalence of individual complaints shifts by country and culture. That geographical drift is a clue in itself. Symptoms tied to a physical cause do not usually reorganise themselves at a border.

The same shape appears one condition over. Multiple chemical sensitivity, the ground chemophobia shades into, also runs on non-specific symptoms, a suspected environmental agent and negative blinded challenges, and carries the same family label of idiopathic environmental intolerance. Neither resembles nosophobia, which fears an illness that might arrive rather than attributing symptoms already present to a named external cause.

Susceptibility is described differently by different people, some naming electric fields, some magnetic, some particular frequencies. A 2001 survey found self-diagnosed sufferers blaming, in order:

1. cell sites, at 74 per cent
2. mobile phones, at 36
3. cordless phones, at 29
4. power lines, at 27

Why reported electrosensitivity fell as transmitters multiplied

In 1997, before Wi-Fi, Bluetooth or 3G, scientists estimating figures for the European Commission arrived at two very different answers depending on where they looked: fewer than a few cases per million if they counted through occupational medicine centres in Britain, Italy and France, up to a few tenths of a per cent if they counted through self-help groups in Denmark, Ireland and Sweden. Reviewing this in 2005, the UK Health Protection Agency concluded that the spread reflected how much information and media attention each country had.

Then the transmitters multiplied and the rates went the other way. Telephone surveys in Taiwan recorded 13 per cent in 2007 and 5 per cent by 2013. The Netherlands fell from 7 per cent to 4 between 2009 and 2011, Germany from 10 to 7 between 2009 and 2013. A randomly sampled British survey of 20,000 people in 2007 put self-attributed symptoms at 4 per cent. More women than men count themselves among them.

Why a physicist calls electrosensitivity a specific phobia

Sébastien Point noticed in 2021 that two of those numbers match something else. The prevalence of electrohypersensitivity sits close to the prevalence of specific phobias, and so does the sex ratio, roughly two affected women for each affected man. He has proposed classifying it as a specific phobia, a new one, and has argued the point inside psychological models of mental disorder rather than against them.

What is sold to the electrosensitive

A market has grown around the belief, and regulators keep arriving after it. The US Federal Trade Commission has warned about products claiming to protect against phone radiation. In Britain, Trading Standards examined a device called 5GBioShield, sold on claims of mitigating harm from phone signals, and established that it was a USB drive.

The courts have been busier still. A New Mexico judge dismissed a 2012 suit brought against a neighbour over his cordless telephones, dimmer switches, chargers and Wi-Fi; the plaintiff's doctor, who believed she was sensitive herself, and a man presenting as a neurotoxicologist both testified, and the judge found neither credible. In 2015 parents in Southborough, Massachusetts alleged that school Wi-Fi was making their son ill. In November of that year a depressed English teenager died by suicide, and her parents attributed it to the condition, which the tabloids and campaign groups then repeated.

How electrosensitivity is actually treated

Since 2005 the WHO position has been to take the complaint seriously and investigate it properly:

• clinical evaluation to find or exclude a medical cause
• psychological evaluation for conditions that might account for the symptoms
• a look at the environment itself for ordinary culprits such as air or noise pollution

Cognitive behavioural therapy has helped some people cope, and comorbid psychiatric conditions respond to their own treatments. Sweden has gone further than most, with some municipalities funding shielding work in the homes of residents who claim it.