What is a wearable device?

Will radiation from wearable devices really not affect human health?

The electromagnetic radiation produced by most consumer electronics, such as computers, televisions and mobile phones, will cause severe physiological reactions in his body.

Symptoms include burning and stinging of the skin, nausea, headache, insomnia and memory loss.

In extreme cases like Segerbeck's, breathing problems, heart palpitations and loss of consciousness can also be serious consequences.

Mobile phones that are active - when making, receiving calls, or searching for signals, where radiation levels are high - can have this effect on Segbeck.

Generally speaking, as long as the phone is not sending or receiving signals, it will not produce enough radiation to affect it.

But he didn't react just because he heard the phone ring.

Once, he recalled, he was on a sailboat with friends. He was standing on the foredeck when someone he didn't know made a phone call from the lower deck, causing him headaches, nausea, and...

Lost consciousness.

As long as Segerbeck is within the range of mobile phone signals (the safe distance varies depending on the model of mobile phone and the level of radiation it produces), he will have the feeling that "the skull can no longer accommodate the brain."

Sweden is the only country in the world that recognizes electromagnetic wave sensitivity as a physical defect, and Segerbeck's experience played an important role in the formulation of this policy.

People with electromagnetic wave allergies in Sweden - about 3% of the country's population, or about 250,000 people, according to official government statistics - can receive the same privileges and social benefits as the blind and deaf.

If necessary, the local government will also fund electronic "disinfection" of the homes of patients diagnosed with electromagnetic wave allergies and help them install metal electromagnetic shielding facilities.

Electromagnetic fields (EMF) are everywhere, and our bodies are always exposed to various electromagnetic fields, but most of them are extremely low frequency radiation (ELF, from household appliances, power transmission lines, etc.) and radio frequency (RF, from mobile phones,

Cordless phones, communication antennas and television signal relay towers, etc.).

Even our bodies themselves produce weak electromagnetic fields, such as electrical stimulation from brain and heart activity.

Ionizing radiation - from X-rays, CT scans and atomic bombs - can cause serious damage to the human body and is often classified as a carcinogen.

However, extremely low frequency radiation and radio frequency radiation are non-carcinogenic radiation and are generally considered to be almost completely harmless to the human body.

Because non-ionizing radiation is not energetic enough to break molecular bonds, it does not directly cause cellular damage that could lead to disease.

But this radiation is everywhere.

“We are exposed to a sea of ??non-ionizing radiation every day,” said John Boyce, a professor of medicine at Vanderbilt University School of Medicine and director of the International Institute of Epidemiology, a biomedical research company in Maryland.

Scientific Director.

Most scientists agree that the ocean is harmless.

Cell phones are safe and conditions like electromagnetic hypersensitivity simply don't exist, they say, because the electromagnetic fields that cause them are weak and not powerful enough to cause health effects.

Non-ionizing radiation from mobile phones has no known effects on humans.

In fact, one generally recognized effect of non-ionizing radiation is that it may slightly heat tissue in close proximity to it.

The Federal Communications Commission of the United States has established a limit standard for electromagnetic radiation from mobile phones - called the specific absorption rate, abbreviated as SAR - as long as it is below this limit, there will be no obvious heating.

According to the analysis of many researchers, the symptoms experienced by Segerbeck and many other patients with electromagnetic wave allergies may actually be caused by diagnostic errors or their psychological effects.

Some experts say people like Segerbeck may also be suffering from mental illness, or may be experiencing a "nocebo effect," in which you think something will make you sick, and you actually get sick.

.

An examination published last year in the journal Bioelectromagnetics pointed out that there is currently no evidence that people with allergies have a stronger perception of electromagnetic fields than ordinary people, but research has found an adverse effect in the same group of people.

Evidence for the placebo effect.

The mobile phone industry's attitude towards this research is very clear.

"The scientific evidence from in-depth and detailed examinations strongly demonstrates that wireless devices do not pose a public health safety hazard," said John Voss, vice president for public health and safety at CTIA-Wireless Alliance, the agency's

An international organization representing the wireless communications industry.

"Furthermore, there is currently no principle of action to prove that equipment that meets the electromagnetic radiation standards promulgated by the FCC will cause negative effects on human health." Including the U.S. Food and Drug Administration, the International Commission on Non-Ionizing Radiation Protection, the American Cancer Society and the World Health Organization

This view is echoed by many major research institutions, including organizations.

(The International Commission on Non-Ionizing Radiation Protection, however, believes that assessment of the health effects of wireless devices should continue as wireless technology becomes more widespread.) Voss also pointed out that statistics from cancer registries—more than those from the National Cancer Institute—

A database from the Surveillance, Epidemiology and End Results program - also shows that there has been no increase in the incidence of brain cancer from the early 20th century to the present.

In countries such as Denmark, Finland, Norway and Sweden, where mobile phone use was widespread earlier than the United States, brain cancer rates also remained stable from the 1970s to the early 2010s.