Presentation on the effect of a cell phone on health. Harm to human health from a cell phone
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Head: Skakunova G.N. teacher speech therapist. Place of work: Municipal Educational Institution “Solenovskaya Secondary School”. Author of the work: Ruslan Skakunov, 4th grade student. Topic: "Influence cell phone on the human body."
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The goal of my work is to find out how a cell phone affects human health, including the child’s body, and how dangerous it is. Provide recommendations to our school students on correct use phone.
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In the course of studying this problem, the following tasks are set: To become familiar with the spectrum of the harmful effects of a cell phone on the human body; To analyze the degree of influence of a cell phone on the health of an adult and a teenager. Consider ways to reduce the negative impact of cell phones by following proper phone use guidelines.
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To solve the problems, the following methods were used: search, research of scientific sources, comparison and comparison of data, generalizations, questionnaire survey.
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Relevance. In the 20th century, the speed of message transmission increased greatly. Fast communication makes it easier for people living in different parts of the world to communicate. Nowadays, any messages - written, audio - can be transmitted using electricity; the operation of the telephone is based on this principle.
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Advantages mobile communications. Clear speech sound; Absence extraneous noise and metallic voice effect; Data transfer rates can reach 153 Kbps.
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Danger mobile phones. Research into the effects of mobile phones has shown that the antennas that receive and transmit mobile phone signals are indeed sources of electromagnetic radiation that can penetrate the human brain. However, there is no evidence that this is associated with an increased risk of tumors in the head or neck. The British Institute of Cancer Research published data from its own study, which concluded that the use of mobile phones does not lead to an increased risk of brain cancer.
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Mobile phone and child. However, cell phone radiation especially affects children's bodies, which is due to the insufficient development of their immune system. Enormous harm is caused to the child’s brain, since his brain cells have just begun to develop and receive the information he needs, and radio waves destroy cells in the cerebral cortex and brain, impede blood circulation, and also cause high blood pressure and a decrease in the number of red blood cells.
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Scientists' warnings. Experts advise children and teens to limit their phone time because their brains and nervous systems are still developing.
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The most popular place to carry a phone. Scientists believe that it is not only talking on a mobile phone that is harmful, but even having it in your trouser pocket. Students carry them in the pockets of their trousers and jackets; some carry phones in their bags; Some children prefer to wear a cell phone around their neck or on their belt.
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Criteria for the harmfulness of a cell phone. Since the mid-90s, the norm of permissible human exposure has been actively promoted, expressed in electromagnetic wave power (W) per 1 kg of live weight - Specific Absorption Rate (SAR), it should be in the range from 0.28 to 1.5 W /kg. The lower the SAR, the safer phone for a person Today this norm is even being introduced to make it mandatory to indicate a cell phone in the passport
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Conclusion. In my work, I did not answer the question unequivocally: “What harm does a cell phone do to human health?” After all, even scientists have not come to a consensus. But I believe that it is necessary to tell and explain to children and parents that such a problem exists, and each of us can and even is obliged to take simple precautions. You can’t buy a person’s health or a teenager’s health for any amount of money. Therefore, we suggest that you familiarize yourself with the rules for using a cell phone and telephone etiquette.
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Rules for the use of cell phones. When buying a phone, be careful and pay attention not only to the capabilities and design of the phone. But also on SAR value, which should be indicated in the instructions Do not hang the phone around your neck, put it in your bag and do not keep it in your pockets. Children and teenagers need to limit the amount of time they use phones. In order not to harm the environment and human health when disposing of waste, separate such products from other waste and recycle them for recycling purposes. reuse valuable materials.
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Telephone etiquette. Turn off your mobile phone when using radio communications may endanger the lives of others. Refrain from using a mobile phone while driving. Turn off your phone or switch it to silent mode at performances, film shows, concerts, and museums.
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PROJECT WORK IN PHYSICS “The influence of a cell phone on human health” Author of the work: Marina Tsagolova (11th “G” grade; MBOU SOMSH No. 44). Year of development: 2015 academic year. Project goal: To consider the effect of a cell phone on the body.
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Mobile phones have become a part of our lives. This is both the Internet and satellite television, and mobile communications. Without it, the information age is impossible. Each of us must understand the adverse effects due to electromagnetic radiation.
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HYPOTHESIS: Mobile phones have harmful effects and we need to think about it. Objectives: study the history of mobile communications and give examples scientific research the influence of cellular communications on the human body, find out how a cell phone affects the health of children. conduct a survey on the topic: the importance and popularity of a mobile phone; conduct an experiment.
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First Inventor Mobile phone creator Martin Cooper, who was the lead engineer in the Motorola department that developed the first cell phone, criticized modern mobile phones.
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Martin Cooper made the first in April 1973 wireless call. As he recalls, the first mobile phone weighed a kilogram, and its battery only lasted for 20 minutes of conversation. Cooper noted that this was very useful, since the hand still could not stand it for more than twenty minutes. First wireless call
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The influence of cell phones on our body. Scientists have not yet come to a clear conclusion about how harmful mobile phones are. But there is more and more evidence that they do have a negative effect on our body.
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Effect on brain activity When using a mobile phone, our entire head is irradiated. When using a mobile phone, our entire head is irradiated. Cell phone radiation damages areas of the brain associated with learning, memory and movement. Scientists believe that when talking on the phone, “the energy of the same nature that rotates electric motors and cooks chicken in the microwave penetrates the head, affecting the brain and other human organs.” .
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Effect on vision The phone's screen radiation is very low. The whole point is not at all in the radiation, but precisely in these very small screen sizes. Our eye is designed in such a way that it is extremely difficult for it to focus its gaze on a minimally sized object. The eye muscle has to make superhuman efforts to transmit a clear picture to our brain, especially when it comes to mobile chat or mobile games, when the tension reaches its limit when spending the longest possible time with the phone in your hands. Research on this subject has shown that two hours of communication (consecutively) a day with your mobile friend so that in a year your vision drops by 12-14%.
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Effect on hearing. During a prolonged conversation, there is an increase in the temperature of the ear, eardrum, adjacent tissues and the adjacent area of the brain. Surely many of you may have noticed a feeling of warmth in your ear after a long conversation. This is nothing more than the result of exposure to the electromagnetic field created by the telephone transmitter. Scientists have found that the risk of developing a tumor in the ear to which a mobile phone is applied is 3.9 times higher than in the opposite ear.
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Affect the heart, blood. Affect the heart, blood. But the most unexpected thing for many was that the mobile device affects the composition of a person’s blood. Man is also an electromagnetic system. As you know, our blood is salty, these are positive and negative ions NaCl. Accordingly, this effect can lead to an increase in blood viscosity, blood cells will begin to form blood clots, and this is already fraught with problems with the cardiovascular system.
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Personal data No. 1. I conducted research in the form of a questionnaire. The purpose of the study is to analyze information about children’s attitudes towards the telephone and its use. Have you heard about the effect of the telephone on the human body? (8th and 11th grade students) Conclusion: the vast majority have heard about the effect of the telephone on the body. Conclusion: the vast majority have heard about the effect of the telephone on the body. Conclusion: The vast majority have heard about the effect of the telephone on the body.
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2. When did you get a mobile phone? (students 8, 11 grades) Conclusion: Basically, the telephone appeared due to the fact that children went to school, and parents were worried about where the child was. 20% say that the phone has turned into a toy, and often becomes a subject of boasting.
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3.How you hold the phone during a conversation. Conclusion: Unfortunately, most people do not know that by pressing the “tube” to the ear they receive a large dose of radiation.
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Harm to human health from a cell phone Biology teacher of Municipal Educational Institution Secondary School No. 2 of the urban district of the Closed Administrative Okrug of Svetly Baranova I.A.Slide 2
Evidence of harmful effects on human health. What arguments exist in favor of the version about the harmful effects of phones on human health? The opinion of a group of scientists from the UK and Scandinavian countries, which identified the risks of using a mobile phone under the leadership of Finnish Anna Lakola, is interesting. By the way, she is one of the leading researchers in the world in the field of radiation protection. Scientists examined one and a half thousand people with brain cancer. 3.5 thousand healthy people were also tested, and every tenth of them had used a cell phone for more than 10 years. The researchers came to the conclusion that you should talk on a mobile phone no more than twice a day. Otherwise, there is a risk of developing a brain tumor in five to ten years.
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By the time the first cell phones were created, the electromagnetic radiation powers permissible for humans had already been well studied and included in American (1992), European (1995) and Australian (1998) standards. The State Committee for Sanitary and Epidemiological Surveillance of Russia developed such standards in 1995, and in 1998 the International Commission on Non-Ionizing Radiation Protection (ICNIRP) made its recommendations.
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The fact is that even lethal levels of radio emission are practically not felt by humans. What can we say about small doses characterized by non-thermal effects on the body.
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The impact of cell phones was studied on human models that imitated the structure of his skeleton and soft tissues, heat and electrical parameters (heat capacity and electrical conductivity, dielectric constant, etc.). On mathematical models The effects on the entire body and on individual organs, blood and even cells were studied.
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It turned out that radio radiation can change the structure of the protein in the worm and cause malfunctions in the frog’s heart; Temporarily and slightly increase a person’s blood pressure, as well as cause feelings of dizziness and drowsiness; Impair memory in rats, but at the same time improve intellectual abilities in humans. In general, the results were often contradictory. It was not possible to detect a tangible effect on the body, but it was not possible to prove the opposite.
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Cell phone in the hands of a teenager. Today, many schoolchildren practically never part with their mobile phones. They wear them around their necks, on their belts, and talk constantly. Moreover, the bell can often be heard during the lesson, which greatly interferes with its conduct, distracting everyone. During a lesson, some children have a desire to send SMS messages “unnoticed” by the teacher. Sometimes you even have to collect annoying “cell phones” and put them on the teacher’s desk.
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But few parents and schoolchildren think about the fact that a cell phone can pose a health threat. But in the press you can often find articles warning about the dangers posed by mobile phones. Journalists talked to many experts on this topic.
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According to scientists from the Russian Center for Electromagnetic Safety, the consequences are not entirely clear, but it is known for sure that electromagnetic radiation has an increasing effect on the brain. Therefore, a cell phone should not be used by patients with epilepsy or those predisposed to this disease; the radiation from a cell phone can provoke an epileptic seizure. Experts recommend not giving a phone to children and teenagers under 16 years of age!
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Using a cell phone while driving. It has been established that drivers who drive a car with one hand while holding a telephone receiver in the other have decreased attention. Talking on the phone increases the risk of an accident by almost 4 times! In many countries, including Russia, laws have been passed prohibiting car drivers (and sometimes cyclists) from using phones while driving, and this requirement even applies to cars standing in a traffic jam or in front of a red traffic light.
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However, statistics show that cell phones in cars often save lives, allowing you to call for help in a timely manner in case of accidents. We should also not forget how many lives a telephone saves in the event of earthquakes, building collapses, etc., when a person can call and report exactly his location and in what condition he is.
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Survey questions: Student’s name Do you have a mobile phone? Does your phone have Internet access? If yes, how much time per day are you on the Internet (in hours)? Approximately how long (in minutes) does it take you to complete one phone conversation? Approximately how much time (in minutes) per day do you communicate on the phone? Do there ever be times when you communicate on the Internet at night? If yes, how often do such situations occur? Emphasize those health problems that bother you: insomnia at night, drowsiness during the day, headaches, heart pain, decreased vision, frequent fatigue. How do you rate your well-being on a five-point scale? (0 – very bad, 1 – bad, 2 – 3 – satisfactory, 4 – good, 5 – excellent).
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Results of student survey. Number of students using the Internet. Use the Internet for less than 1 hour 2%
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General conclusion: Based on the survey, it was revealed that mobile phones actually have a negative impact on both the performance and general well-being of students.
Research
Subject:
«
Completed : about students of 4th "A" class
Tcherezov Bogdan
Tarasov Denis
Supervisor: Zryumova S.V.
Target: identify the benefits of mobile phones and their possible negative impact on the health of primary schoolchildren
Tasks :
- Conduct a survey of 3rd and 4th grade students to identify the frequency of their mobile phone use during the day.
- Study various theoretical sources on the research topic.
- Identify the benefits and possible harms of mobile phones.
- Create a memo for students primary classes on safe cell phone use.
- Subject of study: benefits and possible harm of mobile phones
- Object of study: mobile phone
- Hypothesis: mobile phones have harmful effects and many people don’t think about it
- Research methods : observation, research of journalistic and scientific sources, questioning
PROS mobile communication
1.Expands communication between people.
2.Enables parents to always know where the child is.
3. Guarantees the safety of the student: panic buttons to the Ministry of Emergency Situations, to the police, to a psychologist consultant.
4.Promotes obtaining new information via the Internet.
5.The phone is equipped with a calculator, alarm clock, clock, flashlight, and camera, which can be used at the right time.
MINUSES mobile communication
1. Melodies played during lessons and SMS sent distract students from the lesson and disturb teachers.
2. Listening to music or talking on the phone makes a person absent-minded: according to statistics, people on the street talking on the phone or listening to music are several times more likely than other pedestrians to get hit by a car.
3. Accidents occur more often if the driver was also talking on the phone while driving.
4. Provokes theft.
5.Frequent conversations and SMS correspondence require additional financial costs (sometimes not small!).
The influence of mobile phones on human health
Cell phone radiation damages areas of the brain associated with learning, memory and movement .
Recent studies have shown that two hours of communication (consecutively) a day with your mobile friend is enough for your vision to drop by 12-14% in a year.
A person who has been using it for several years headphones regularly, accelerates the aging process of hearing by two to three times. The effect of false signals and noise appears, which in fact does not exist, and surrounding sounds are confused. And all because in headphones completely different sound quality than in a real environment.
Mobile phones are a real source of infection. There are more bacteria on the body of a mobile phone than on door handles, keyboards, and soles .
Prevention and protection measures
You should limit the duration of one conversation to three minutes, maximizing the period between two conversations (minimum pause - 15 minutes).
Send SMS messages instead of calls.
Don't carry your phone in your pocket or on a lanyard, but keep it on your desk or bag to avoid cancer.
Don't talk on your cell phone in a car or on a bus.
Prevention and protection measures
When sleeping, turn off your phone and move it away from your sleeping area.
During the conversation, use headphones or speakerphone.
Use phone cases made of a unique material that attenuates electromagnetic radiation by 500-1000 times.
Mobile etiquette
Turn off your cell phones during class periods.
It is necessary to turn off your personal mobile phone or switch it to silent mode at performances, film shows, concerts, museums, business meetings and negotiations.
Use a mobile phone in public transport and in public places with the lowest sound levels.
Mobile etiquette
Turn off your mobile phones whenever using radio communications could endanger the lives of others.
Having your phone on on an airplane is dangerous. It is necessary to turn off cell phones during takeoff and landing.
Respect other people's privacy and do not use other people's mobile phones.
Do not use sound phrases that are offensive to others as a call.
Don't use your phone screen to illuminate the pleasant darkness of the cinema hall.
It is impolite to text while having a personal conversation with someone. Follow the “three meter rule”.
Frequency of mobile phone use
have their own phones – 100% learning
The average number of calls per day is 11 stars.
What phone features do you use most often?
Communication with friends and parents - 30 hours
Games – 30 hours
Music – 32 hours
Calculator – 14 hours
Alarm clock – 10 o'clock
Chat (SMS) – 15 hours
Where do you carry your phone?
Stay at home – 4 hours
in the briefcase – 14 hours
in your pocket – 10 hours
Do not have a permanent place –5 hours
Where do you keep your phone at night?
Measuring blood pressure before and after using a mobile phone
- Before the game 90/60
- After the game 100/70
conclusions
mobile phones are needed in Everyday life
Mobile phones have a negative impact on human health
You need to know the rules for using a mobile phone and not neglect them in order to protect your body from harmful effects.
Enina Irina, Matyukhina Anastasia, Smirnov Maxim, 9th grade, 2012-2013 academic year
Searching for information and researching various aspects of the use of cell phones, their impact on human health based on the joint activities of students and teachers of our school.
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Project “The influence of a cell phone on human health” Section “Natural mathematics” Completed by: Smirnov M.D., Matyukhina A.V., Enina I.A. Scientific supervisor: Kuporosova S.A.
Problem: Does a cell phone affect human health? If so, how? Hypothesis: Cell phones bring not only benefits, but also harm.
IN modern world A mobile phone has become an indispensable thing for a person. In recent years, the cell phone has evolved from an expensive device into a common thing, the ringing of which can be heard anywhere today. But many people do not know what harm the phone does to human health. This determines the relevance of our work.
The goal of the project is to organize a search for information and conduct research on various aspects of the use of cell phones, their impact on human health, based on the joint activities of students and teachers of our school. 1. Study material on the topic; 2. Design and conduct research; 3. Analyze the collected material. 4 . Formulate conclusions to confirm the stated hypothesis. Tasks:
History of the development of cellular communications Official birthday of cellular communications telephone communication April 3, 1973 is considered the date when Martin Cooper, head of the mobile communications division of the American company Motorola, made the world's first call on a mobile phone. Martin Cooper
However, this event was the culmination of a very long process that began in the 19th century. Scientists contributed to the development of cellular communications: Popov A.S., Guglielmo Marconi, Reginald Fessenden. Guglielmo Marconi D. Ring developed the cellular principle for organizing a mobile communication network, which solved the problem of mutual interference. Reginald Fessenden
Despite the enormous contribution of American companies, cellular communications did not develop only in the United States. In Europe, the trendsetters in mobile communication technologies were Ericsson and Marconi. The first mobile communication systems in Europe are usually dated back to 1951, when S. Lauren from the Swedish Telecommunications Network Administration developed and tested an automatic mobile telephone system.
Types of cell phones In addition to regular cell phones, there are such varieties as: Camera phone Smartphone Communicator Business phone Brand phone Disposable phone
Elements of a cell phone Most mobile communication standards use a SIM card to identify the subscriber. Cell phone elements also include battery, keypad lock, wallet, vibrate alert, standby and talk time, voice dialing, voice mail, voice recorder, player, profile, roaming, network, service, browser, “dead” zone, JAVA platform, Hand-free, MM S
How to choose a cell phone? Today many people have a cell phone. The demand for phones is constantly growing. And therefore, manufacturers are increasingly releasing new models, which makes it possible to choose from the simplest and cheapest to the most expensive fashion mobile phone. When buying a cell phone, you need to pay attention to: Types and sizes of screen (display) screen size type and capacity battery Presence of a camera in a cell phone Memory
At our school, we conducted a survey of teachers to find out which brand of phone is the most popular in our school Zaliznyak M.V. Teacher of chemistry and biology Varnina N.A. Teacher of Russian language and literature Kuporosova S.A. Mathematics teacher Dronova V.V. Physics teacher Vorobyova L.V. school director T.V. Kochetkova History and social studies teacher O.B. Zubanova Teacher in English Malyugina E.E. English teacher Loginova E.A. Computer science teacher Mikutskene N.S. Physics teacher, deputy Director for educational work Shvetsov A.A. Life Safety Teacher
Based on the results of our survey, we found out what brands of telephones the students and teachers of our school use. Conclusion: Teachers and students are accustomed to buying brands from trusted manufacturers, such as: Nokia, Samsung.
We went to cell phone stores and asked questions like: What are the most common brands in your store? What are the latest phone brands out there?
From this we learned that the most popular phone brands in the MTS, Megafon, Beeline, Tele2 stores are Samsung and Nokia. the newest brands: Samsung Galaxy Note 2, Samsung Galaxy S3, Samsung Galaxy S4, Nokia Lumia 920, Sony Xperia ZL, LG Google Nexus, HTC One
We found out which are the most used cellular operators in our school and showed the results in a diagram. Teachers use cellular operators that have been popular for a very long time and are not used to changing them. Students choose an operator based on benefits tariff plan. MTS and Tele2 are especially popular. Conclusion:
What is a cell phone for? Based on a survey of 71 people, we found out that: A) to access the Internet - 48 people B) to communicate with relatives - 71 people C) for entertainment - 40 people D) to communicate via SMS - 45 people D) to perform operations using the organizer - 50 people E) for listening to music - 57 people G) voice information - 14 people
Survey results: Conclusion: the majority of respondents in our school use the phone to access the Internet, communicate with relatives, listen to music and perform operations using an organizer
We asked the respondents: “What harm, in their opinion, does a cell phone bring?” a) electromagnetic radiation that is harmful to health - 56 people b) “Expensive pleasure” and not always high-quality communication - 33 people c) creation of radio interference by various radio-electronic devices - 34 people d) distracts students during lessons - 37 people e) causes accidents due to inattentive drivers and pedestrians - 55 people e) is the cause of an attack for the purpose of profit - 52 people
Survey results: Conclusion: Most students believe that the telephone is: a source of electromagnetic radiation that is harmful to health; the reason for the attack for the purpose of profit; cause of accidents due to inattentive drivers and pedestrians.
The effect of cell phones on the human body Radiation from cell phones damages areas of the brain associated with learning, memory and movement. If a person talks on a cell phone daily for more than 45-60 minutes, then headaches appear. Research by scientists in Norway and Denmark has shown that cellular users are most susceptible to drowsiness, irritability, and headaches. In a year, vision will drop by 12-14% if you use the phone for a long time.
During a prolonged conversation, there is an increase in the temperature of the ear, eardrum, adjacent tissues and the adjacent area of the brain. Scientists have found that the risk of developing a tumor in the ear to which a mobile phone is applied is 3.9 times higher than in the opposite ear. Swedish physicists from Linköping University have suggested that electromagnetic radiation from mobile phones can damage red blood cells - erythrocytes, increasing their interaction with each other.
Health status of children who use phones Conclusions: Cell phones are necessary in everyday life; Cell phones have a negative impact on human health; You need to know the rules for using a cell phone and not neglect them in order to protect your body from harmful effects.
Recommendations for Cellular Phone Use Turn off your phone in areas where its use is prohibited, where additional regulations apply, or where it may cause radio interference or be hazardous (hospitals, etc.). Radio waves may have a negative effect on the operation of all mobile phones. Don't wear your cell phone on your body! When dialing, keep the phone at a distance. Each conversation should last no more than three minutes, the break between calls should be at least 15 minutes. Use the " speakerphone» and devices with technology wireless communication"blue tous" or write SMS. The main thing is to move the phone away from your head.
As a result of the study, we conclude: The telephone allows us to communicate with people over long distances, access the Internet and many other opportunities, but at the same time, the telephone is harmful to our health, so we must follow the rules for using a cell phone. We propose to post our recommendations on the school stand.
List of sources used http://www.mforum.ru/phones/tests/090440.htm http://mirsovetov.ru/a/hi-tech/cellular-phone/cellular-phone.html http://ru.wikipedia .org/wiki/Cell_phone#.D0.92.D0.BE.D0.BF.D1.80.D0.BE.D1.81.D1.8B_.D0.B1.D0.B5.D0.B7.D0. BE.D0.BF.D0.B0.D1.81.D0.BD.D0.BE.D1.81.D1.82.D0.B8 http://ua-molod.com/articles/168-vliyanie-sotovogo -telefona.html http://www.mobimag.ru/Articles/284/Vstrechayut_po_dizainuIstoriya_dizaina_sotovyh_telefonov.htm 01/06/2009
