Shopping, reading and entertainment with mobile phones.
……
The mobile phone can't live without you.
I can't leave for a minute.
Do you know the radiation that is quietly received?
?
Scholars have carried out a series of studies to answer questions such as whether mobile phone radiation is harmful to the body, what kind of harm it is, and how to avoid it.
Take a quiz first to see how much you know about cell phone radiation.
① Does the beater cause brain cancer?
Hui
not have
C is not clear
② Where is the strongest radiation from mobile phones?
In the toilet.
Subway, car and other means of transportation.
C Chuang
③ When is the radiation strongest when using a mobile phone?
A when in standby
During the call
C has been shelved but not connected.
Do men put their mobile phones in their front trouser pockets to reduce sperm levels?
Hui
not have
C is not clear
⑤ What kind of people are easily affected by mobile phone radiation?
A. Children and adolescents
The old man.
adult
⑥ There is one cell left in the battery, and the radiation is 1000 times larger.
is that true
fake
⑦ Will cell phone radiation become stronger when the cell phone signal is poor?
Hui
not have
(The correct answer is at the end of the article)
Carcinogenic spermicide is true and false.
Cell phone radiation belongs to non-ionizing radiation, and the electric wave energy is low, which is not enough to cause ionization damage and cell canceration, but it will affect the function of cells.
The International Commission on Non-ionizing Radiation Protection (ICNIRP) believes that local exposure to radiation doses exceeding the limit will cause human dysfunction, interfere with the physiological and electrical activities of the human heart and brain, cause poor sleep, and lead to decreased vision and cataracts.
Apple also tested the electromagnetic wave absorption rate when the mobile phone is 5 mm away from the body. The results show that its radiation exceeds the upper limit of mobile phone radiation set by the Federal Communications Commission (FCC). Imagine that the mobile phone is placed next to the body, and the human body receives more radiation, doesn't it?
Although it is still controversial whether the incidence of glioma increases among mobile phone users, 20 1 1, 3 1, and the International Agency for Research on Cancer (IARC) officially listed mobile phone radiation as a possible carcinogenic level.
Children who affect their health are more likely to be "injured"
Compared with adults, children are more susceptible to electromagnetic radiation. The brain is the main exposed organ of mobile phone radiation. Experts believe that the nervous system is not fully developed in childhood, and even low-frequency electromagnetic radiation will interfere with children's active electrophysiological activities, leading to neuronal damage.
The longer children and teenagers use mobile phones, the more electromagnetic radiation they are exposed to, and the greater the risk of harm to their health.
An expected group study of 234 teenagers found that the longer teenagers use wireless devices, the greater the amount of electromagnetic radiation they receive, and the greater the degree of memory decline after a year of cognitive testing system.
However, according to WHO, these studies on the effects of mobile phone radiation on memory, learning and cognitive functions are inconsistent. The most common health risks associated with mobile phone use are distracted driving and traffic accidents.
It can also reduce the radiation of mobile phones.
It is almost impossible not to use mobile phones, but scientific use can reduce the radiation damage of mobile phones. In addition to minimizing the frequency and time of using mobile phones, you can also pay attention to the following points:
Avoid putting your mobile phone next to your body;
Don't put your mobile phone on the bed when you sleep;
Try to answer the phone with wired headphones or hands-free;
Turn off the wifi connection when not using the mobile phone; Turning off wifi wireless devices will also reduce non-ionizing radiation sources.
It should be noted that the radiation intensity of mobile phone is related to the signal intensity of mobile phone. The communication signal is poor, and the mobile phone needs to maintain high power to search the base station to maintain communication, and the greater the radiation of the mobile phone.
Try to make a phone call in an open outdoor environment, with good communication signal and less cell phone radiation.
Thunderstorm weather, poor communication signal, try not to call the mobile phone, which not only reduces the radiation of the mobile phone, but also prevents lightning and electric shock.
When driving at high speed, mobile phones need to constantly find and switch base stations, which will increase the transmission power and produce more mobile phone radiation.
In the process of moving, such as high-speed trains, bullet trains and elevators, try not to use mobile phones, so as to reduce the increase in power and radiation caused by switching base stations.
When the mobile phone is online, especially when dialing, the radiation is the largest, which is equivalent to about 3 times of the standby state. It's best to talk after the phone is connected 1~2 seconds.
Many people are concerned about whether they can make a phone call when the phone is charging. There is also a saying on the Internet that "when there is only one battery left in the mobile phone, the radiation amount is ten million times". Is it true?/You don't say.
The power of mobile phone has nothing to do with the radiation intensity of mobile phone, but the signal intensity is the decisive factor of the radiation intensity of mobile phone, so this statement is a rumor. It's best not to make a phone call when the mobile phone is charging, mainly because it can appropriately extend the life of the mobile phone battery.
In recent years, there is another interesting research discovery about the radiation of mobile phones. The electromagnetic radiation intensity of using mobile phones to surf the Internet is less than that of short messages, and the radiation intensity of short messages is less than that of calls. From this point of view, when the signal is good, the time and distance used by the mobile phone are the same, and using the network to contact is the best choice to reduce the radiation of the mobile phone.
In addition, the radio frequency signals of mobile phones may interfere with some electronic medical equipment and navigation systems, that is, electromagnetic interference. Mobile phones are usually prohibited on airplanes; People who wear pacemakers should also prevent the problems caused by using mobile phones and try to put them on the other side of the body where pacemakers are implanted.
Finally, to buy a mobile phone, you must also buy equipment that meets the national standard. The "shanzhai version" mobile phone has not been tested for radiation SAR value, and there is no network access license. Radiation limits are often not up to standard, and their radiation damage to human body is unknown. Some mobile phone anti-magnetic stickers or anti-magnetic mobile phone cases on the market are mostly gimmicks of merchants, which are not helpful to prevent mobile phone radiation at all.
(Correct answers: 1C, 2B, 3C, 4C, 5A, 6B, 7A)
Scientific mobile phone
Stay away from radiation
Care about health
Happy embrace the 5G era
Author: Liu Danqing, Department of Radiology, West Hospital of Beijing Chaoyang Hospital affiliated to Capital Medical University.
Audit experts: experts from the national health science expert database.
Sun Quanfu, a researcher at the Institute of Radiation Protection and Nuclear Safety Medicine of China Center for Disease Control and Prevention, said.
Planning: Tan Jia