Wi-Fi waves are not harmful to health

Recently, scientists have concluded that there is no sign that wifi waves have a negative impact on human health.

The BBC's Panorama program said it found that the amount of Wi-Fi waves in a school is three times higher than the amount of mobile phone waves in a normal environment. But this figure is still lower than the safety level set by the British government.

Sir William Stewart - Chairman of the UK Health Protection Agency - insisted that further research on the impact of Wi-Fi waves was needed.

Talking to Panorama program Mr. Stewart confirmed that there is evidence that radiation waves from devices such as cell phones or Wi-Fi transmitters, although at low levels, have adverse effects on their health. people.

Wi-Fi waves hardly have any adverse health effects.

Other experts seem to disagree with the position of the chairman of the Health Protection Agency.

Lawrie Challis, a professor at Nottingham University and president of the Mobile and Telecommunications Research Organization (MTHR) program management committee, said: " Wi-Fi waves are almost unavailable." Any adverse health effects Wi-Fi broadcasts are usually not strong and away from users . "

" There are also cases where Wi-Fi receivers are close to users like a laptop, for example. This is the same as if we recommend children not to use cell phones. advise them to put the laptop on the table instead of leaving it on the lap if they intend to use for a long time ".

The intensity is too low

Professor Malcolm Sperrin - a medical expert - also told BBC News Wi-Fi waves have no impact on human health. " Wi-Fi waves are low-intensity radio waves with wavelengths similar to those used in microwaves. But the Wi-Fi wave strength is less than 100,000 compared to the microwave intensity in the microwave ."

Radio waves generated from Wi-Fi transmitters, white light, microwaves or mobile phones can cause the surface temperature of objects to increase but they cannot cause any adverse effects. Come on.

The Health Protection Agency said that the amount of radio waves emitted from a Wi-Fi hotspot in a year is equal to the amount of waves emitted by the mobile phone when making a 20-minute call.

" Some people think that Wi-Fi waves have many other harms, but so far there is no convincing evidence to prove it, " said Professor Sperrin.

Radio waves and radiation waves have become a part of human life.

Research results

For centuries, radio waves and radiation have become a part of human life. If they do cause any bad effects then maybe everyone is already aware. They will be fully documented and studied.

Professor Sperrin said: "The research on radio waves is still ongoing in many countries. The evidence shows that Wi-Fi waves are within a certain threshold and do not harm the health. healthy people ".

Professor Olle Johansson of Karolinska Research Institute (Sweden) confirmed that he has evidence that low-intensity radio waves have a negative impact on human chromosomes.

University of Washington professor Henry Lai also confirmed to Panorama that he had discovered 4 negative effects on human health under the influence of radio waves.

In the past 30 years, there have been about 2 to 3 thousand radio wave studies conducted. As a result, 50% said there was no evidence of harm and 50% said yes.

But Professor Will J Stewart of the Royal Academy of Engineering said: " Science has been studying the safety of mobile phones for many years and most think there are no significant signs of harm. ".

No harm

But not every device emitting electromagnetic radio waves is completely harmless. For example, sunlight sometimes causes skin cancer. Therefore, when you use a laptop, don't leave it on your lap for a long time, but you should have a cushion.

Professor Sperrin said that the problem with Wi-Fi wave research is that it is currently impossible to prove the harm of this type of wave. " It is hard to prove that there is no bad effect. Wi-Fi can only be removed when it is proven harmful ."