Play mobile phone cool, always play has been cool
Mobile phones should be the most inseparable things for modern people, eating, sleeping, going to the toilet... I have to play with a mobile phone in my hand to feel perfect
But there are some statements about mobile phone radiation that make people uneasy to play:
When sleeping, the mobile phone can not be placed on the pillow side, otherwise there will be radiation?
Can cell phone radiation cause cancer?
A lot of radiation when the phone is low?
The worse the mobile phone signal, the greater the radiation?
Is cell phone radiation really so scary? Let's take a thorough look at it today.
What is radiation?
Radiation is an object that emits energy outward by releasing electromagnetic waves or particles. It travels extremely fast, equivalent to the speed of light.
All objects in nature, as long as the temperature is above zero degrees of absolute temperature, are constantly transmitting energy in the form of electromagnetic waves and particles. That is to say, in the environment in which we live, radiation is everywhere.
According to the intensity of radiation, it can be divided into ionizing radiation and non-ionizing radiation:
ionizing radiation
If the intensity of the radiation is sufficient to affect the electrons in the atom and "turn" the electrons away, this radiation is called ionizing radiation.
Generally, ionizing radiation only appears around "mass killers" such as radioactive elements, nuclear reactors, and nuclear weapons. People exposed to ionizing radiation, cancer is a small thing, depending on the dose and time is likely to cause death in the short term.
The most ionizing radiation we are exposed to in our daily lives mainly comes from radiological tests done in hospitals, such as X-rays and CT examinations.
Non-ionizing radiation
For non-ionizing radiation, the energy of its radiation is not enough to ionize atoms or molecules, and its effect on the human body is qualitatively different from ionizing radiation, in other words, non-ionizing radiation does not directly lead to genetic mutations.
Infrared rays, light, and electromagnetic waves and microwaves generated by home appliances all belong to the category of non-ionizing radiation. The radiation emitted by the mobile phone is electromagnetic wave radiation, which is non-ionizing radiation.
Of course, even if it is non-ionizing radiation, excessive radiation doses can cause damage to the human body. For example, excessive irradiation of infrared rays will dehydrate people; long-term exposure to light radiation will cause optic nerve fatigue, myopia and so on.
Mobile phone radiation, can it cause cancer?
There is no clear evidence that mobile phone radiation causes cancer. The International Agency for Research on Cancer, a subsidiary of the World Health Organization, classifies "radio frequency electromagnetic waves", including mobile phone radiation, as Class 2B carcinogens.
Grade 2B refers to "suspects" who may cause cancer but lack evidence. And mobile phone radiation is also a class 2B carcinogen, there are red meat (pork, beef, lamb, etc.), kimchi, coffee and other items, but we are still eating, just to grasp the amount.
When the battery is low and the signal is poor, the radiation is greater?
Mobile phone radiation is related to the strength of the signal, has nothing to do with the power, no matter how much mobile phone power remains, whether it is charging, it has nothing to do with the size of the radiation.
The worse the mobile phone signal, the greater the radiation, which makes some sense. Poor mobile phone signal, indicating that the signal received from the base station is weak, the mobile phone will increase the signal power emitted to maintain basic communication, so that the non-ionizing radiation will increase.
How far away from the phone is there no radiation?
Although it is known that mobile phone radiation is harmless, there are still many people who want to minimize the amount of radiation on mobile phones, especially when sleeping.
The solution is actually very simple, you can place the phone in a position other than 0.5m. The radiation of mobile phones decreases with distance, and studies have shown that when the distance is 50 centimeters, the effect of radiation is minimal.
Mobile phones are not carcinogenic but also have health hazards
1
Decreased vision
Turning off the lights at night for a long time facing the mobile phone screen, it is also easy to cause progressive vision loss, eye sourness, blurred vision, and serious papilledema, fundus macular degeneration, glaucoma and other ophthalmic diseases.
2
Spinal injury
Playing mobile phones with your head down for a long time can easily cause spasm of the lumbar muscles and changes in the physiological curvature of the cervical and lumbar vertebrae.
3
Causes constipation of hemorrhoids
Many people often play with their mobile phones when they go to the toilet, which will inadvertently lead to difficulty in defecation, and it will be easy to cause hemorrhoids and constipation in the long run.
4
Affects sleep
Playing mobile phones before going to bed will cause physiological or psychological excitement, and after turning off the lights, the light generated by mobile phones will also inhibit the secretion of melatonin in the body, which can easily lead to difficulty falling asleep and poor sleep quality, which will lead to a pick up of mobile phones, simply stop! No! under! come!
Therefore, instead of worrying about the radiation problem of mobile phones, it is better to pay attention to how to use mobile phones safely and healthily.
Resources:
1.Ji Yang. Is the radiation 1000 times stronger when the mobile phone is running out of power than when it is fully charged[J].Modern Physics Knowledge, 2020,32(06):70
2.TANG Lei. What are the "rumors" about the harm of mobile phone radiation[N].Beijing Daily.2017-06-02
3.Ma Jiahong,Yuan Yufei. Electromagnetic radiation is everywhere, but the public does not need to panic [N].Guangming Daily.2013-10-08