On September 12th, Apple released a new generation of iPhone 15/15Pro series. Every year, the release of Apple's new iPhone attracts global attention, but this year, in addition to the newly released iPhone 15, the iPhone 12 that is no longer sold is also on fire.

I. Principle of excessive radiation level

The so-called "radiation" refers to radiation that can ionize atoms or molecules of a substance to form ion pairs (ions and electrons). In the field of radiation medicine and protection, it refers to radiation that can produce ion pairs in biological substances. In nature, radiation exists widely and almost everywhere.

The World Health Organization and other international authorities acknowledge the potential harm of the thermal effect of electromagnetic radiation. More than 7% of human body is water, and water molecules rub against each other after being radiated by electromagnetic waves, causing the body to heat up and causing various symptoms such as palpitation, insomnia, bradycardia, leukopenia, decreased immune function, and decreased vision. Various countries and international organizations have formulated the limit standard of public electromagnetic radiation, and the specific absorption rate is the universal measurement standard of electromagnetic radiation in the world. In this incident, the EU's specific absorption rate limit for limbs is 4W/kg, and the test results show that the specific absorption rate of limbs of iPhone 12 is 5.74W/kg, which exceeds the upper limit stipulated by the EU.

Second, the influence of excessive radiation level of mobile phones

Although radiation from mobile phones does not necessarily cause brain tumors, long-term use of mobile phones does have an impact on the human brain. Because the operating principle of the human brain is nerve conduction, and the external electromagnetic field generated when the mobile phone is close to the ear may interfere with and affect the brain electrical activity of the human body.

You may have the experience that after a long phone call, you will have headaches, dizziness, inattention and even affect your sleep. Generally speaking, symptoms can be alleviated or disappeared as long as the phone call time is reduced, or long-term contact with mobile phones is avoided to ensure the quality of sleep.

In particular, parents should be reminded to limit their children's use of mobile phones. At present, the prevalence of brain tumors in children is rising, and it has become the second disease that harms children's health (second only to leukemia). This is because children's ears and skulls are thinner and smaller than those of adults. When they use mobile phones, the radiation absorbed by their brains is more than 5% higher than that of adults, and the longer they use mobile phones, the greater the cumulative effect of radiation.

Third, other mobile phones also have excessive radiation

Recently, the official Tik Tok account of China electromagnetic shielding product manufacturer Beijing Shuihua Qingyang Technology Co., Ltd., "Radiation Protection Technology", released three consecutive electromagnetic radiation test films of Apple mobile phones, which aroused widespread concern among netizens in China. The inspector claimed to have been engaged in the electromagnetic radiation industry for 19 years. She used TES-593 instrument to test Apple mobile phones including iPhone XS/Max, iPhone 12/Pro and iPhone 13. The test results show that the radiation values all exceed the current standard of 4uw/cm2. Among them, Xiaomi Redmi Note 5 was detected that the head SAR exceeded the standard, and Xiaomi finally solved the related problems through software rectification.

fourth, how to prevent the health hazards of using mobile phones?

1.? Keep the distance between the mobile phone and the eyes

It is recommended to keep the distance between the mobile phone and the eyes at arm's length (about 5 cm-7 cm);

2.? Keep sufficient light

Make sure that there is no big difference between the brightness of the mobile phone screen and the surrounding light, and make sure that you can see the mobile phone screen clearly without any effort.

3.? Control the use time

It is recommended to play with your mobile phone for about 2 minutes, then change your line of sight and look into the distance for 2 seconds. In addition, try not to watch the mobile phone screen for more than 4 hours every day. 4.? Keep the correct posture

It is recommended to put the mobile phone higher, and it is best to watch it head-up, and avoid lying on the sofa or bed watching the mobile phone.

5.? Blink more

When blinking, the eyes will secrete tears to moisten the cornea. Under normal circumstances, the eyes blink about 24 times a minute. When playing with a mobile phone, we blink less because we concentrate on the screen of the mobile phone.

I suggest you reduce the use of mobile phones appropriately and take good care of your health ~