1. Benefits: 1. People can access the internet more conveniently, without having to bring a computer to connect the network cable.

The convenience this brings to people's lives is obvious. It has changed people's way of life, and it will certainly develop in a more intelligent direction. 2. Because of the development of mobile phones, those various applications have also entered people's field of vision.

Among them, learning is one of them. You can use the dictionary application on your mobile phone to look up words, or you can watch an open class. Let everyone's study come into life.

3. Understand the latest information in the world. For people, there is no need to subscribe to newspapers or anything. Of course, it is obviously impossible to replace newspapers and magazines at present, which may be more important for businessmen.

Second, the disadvantages: 1, radiation to the body; As we all know, mobile phones have radiation effects. When the magnetic field of mobile phone is close to human body for a long time, our bones will deform and bend, resulting in pain symptoms. The radiation effect of mobile phones will also affect the development of the brain, and in the long run, there will be a phenomenon of mental decline. 2. Distraction; The harm of mobile phones goes far beyond physical harm. Walking and playing mobile phone will distract attention, lead to inattention, affect work efficiency, and even lead to emergencies.

3. Hearing loss; Long-term use of mobile phones, if the two-way phone calls are too loud, may affect our hearing, leading to hearing loss. Many people use mobile phones as a tool to watch videos and listen to music for a long time, but wearing headphones will affect our overall hearing, which is not conducive to the good development of our eardrums and even lead to hearing loss. 4. Reduce the quality of sleep; When you sleep at night, put your mobile phone aside. After we enter the dream, the radiation from mobile phones will start to invade our brains. The normal development of the brain will awaken the nervous system of the brain, make people clear-headed and reduce the quality of sleep. Therefore, try not to use cell phones or put them near their heads when sleeping at night.

5. Finger syndrome; Chatting with mobile phone for a long time, whether it is QQ chat or SMS chat, when typing, both thumbs are often controlling the screen of the mobile phone. Finger-thumb syndrome will appear when talking for a long time, fingers will bend inward, phalanges will start to loosen, and adverse reaction symptoms such as numbness, pain and soreness will appear. Be sure to use the mobile phone moderately. 6. Mobile phone dependence; For a long time, we took out our mobile phones to entertain ourselves whenever we were free. Over time, we will have a dependence on mobile phones, which is subtle.

What are the disadvantages of watching mobile phones?

1, which is very harmful to the brain. Radiation is the first harm that mobile phones bring to the body. Playing mobile phone for a short time may not do much harm to your health. When the mobile phone is on standby, the radiation is the smallest, and when the phone is dialed but not connected, the radiation is the largest, which is about three times that of standby. Powerful radiation microwave can damage the brain through the skull, causing neurasthenia, headache, memory loss and nausea.

2, it is also very harmful to the heart. Often putting your mobile phone on your chest or lying down to play will have some effects on your heart and endocrine. If the heart function is not complete, try not to play mobile phones for a long time, which will lead to menstrual disorders in women.

3, the harm to the cervical spine, often looking down at the mobile phone will cause cervical discomfort, stiff neck, limited activity, but also oppression of blood vessels, leading to ischemic stroke.

Look at the harm of mobile phones.

1 increases the risk of brain tumors. The director of Georgetown University Cancer Center said, "Our latest research, combined with previous research, shows that mobs increase the potential risk of brain tumors."

Medical experts from the University Hospital in ? rebru, Sweden, also released the research results, saying that they analyzed 1 1 global related research and found that using mobile phones 1 hour every day is enough to increase the risk of brain tumors in the long run. Experts remind: when using headphones, use hands-free headphones to answer, and remember not to put the phone near your ear five seconds before the call is connected.

Radiation can lead to Alzheimer's disease. A Swedish medical report pointed out that mobile phone radiation may be harmful to users' brains, including Alzheimer's disease. Experiments show that as long as the radiation wave of mobile phone is around for two minutes, the body's defense function to prevent harmful protein and toxins from entering the brain will also lose its function.

However, once harmful protein enters brain tissue, the risk of brain and nerve diseases, such as Alzheimer's disease, Parkinson's disease and multiple sclerosis, will increase. Experts remind: use mobile phones as little as possible, and use public phones as much as possible if there are public phones.

3 Frequently answering the relevant evidence that mobile phones are prone to cataracts shows that after eight years of experiments, the Institute of Ophthalmology of Zhejiang University confirmed: "Even if mobile phones are used within the scope of international radiation safety standards, long-term use will still cause damage to human parts such as eyes. The electromagnetic microwave generated when the mobile phone is answered will damage the lens of the eyeball and destroy the cell communication connection function. "

Experts remind: Try to control the call time within half an hour. Talking on a cell phone for two hours in a row will definitely damage the lens of the eyeball. Especially men and women in love.

Evidence of osteoporosis shows that the researchers invited 150 male mobile phone users, who used to wear their mobile phones on their belts for 15 hours every day for 6 years, and used a dual X-ray bone density detector to detect their pelvic bone density. The results showed that the bone density of iliac wing near the end of the mobile phone decreased slightly.

Experts remind: don't carry your mobile phone with you. It's best to put it in your bag as far away from our bodies as possible. Many patients will have unexplained rashes on their ears or cheeks, and even some patients will have similar rashes on their fingers. The doctor suspected that skin allergy may be caused by excessive use of mobile phones.

In this regard, the British Dermatology Association quoted published research data as saying that after long-term use of mobile phones, prolonged contact with nickel on the surface of mobile phones may lead to allergic reactions on the skin, resulting in a red or itchy rash, which is called "mobile phone dermatitis". Experts remind: it is best to answer the phone with headphones when using, and don't let the phone touch the skin for a long time.

The wrinkles in the corners of the eyes and eyebrows increase because the words on the screen of our mobile phone are too small, and we squint for a long time, which leads to the wrinkles in the corners of the eyes and eyebrows increase. Expert advice: If you find wrinkles in the corners of your eyes and eyebrows have increased, please turn up the text on your mobile phone a little.

Another reason is that the screen is too dark. I suggest you set the screen to a brighter mode. This will prevent wrinkles.

After a long call, the phone itself will get hot, and the ears and cheeks will feel very hot. In fact, this heat is accompanied by ultraviolet rays, which will lead to the accumulation of pigments and eventually form spots.

We try our best to protect ourselves from the sun every day, but it's really not worth it because of the radiation from mobile phones. Experts remind: long-term calls should pay attention to anti-ultraviolet.

Touching the screen of a mobile phone countless times can be said to be a hotbed of bacteria. If it is not cleaned, it will adhere to the face, which is one of the reasons for acne and dry skin. Therefore, we must develop the habit of cleaning the screen of the mobile phone regularly, so as to ensure the health of the skin.

Experts remind: it is recommended to wipe the mobile phone with antibacterial items to ensure that the mobile phone is clean. Evidence of killing 30% * * * shows that researchers have found that radio frequency electromagnetic waves (RF-EMW) emitted by mobile phones will have adverse effects on human beings.

The researchers found that the activity and viability of the * * * * sample exposed to RF-EMW were significantly reduced by analyzing the two * * * samples and the unaffected * * * samples respectively. Experts remind: for your "sexual happiness", it is best to put your mobile phone in your bag.

People exposed to radiation go into deep sleep for a longer time, and the time of deep sleep is also shortened. Researchers believe that cell phone radiation may affect the stress system of the brain, making people more alert, more focused and less able to relax and fall asleep.

The reason is that cell phone radiation can make people nervous and stay awake, thus reducing their sleep ability. Expert advice: avoid talking on your cell phone before going to bed and turn it off before going to bed.

Emotional depression Scientists in Britain, the United States and Sweden jointly investigated the radiation hazards of mobile phones and found that mobile phone radiation can cause insomnia, headache and emotional depression. The radiation in the mobile phone will * * * our brains, leaving us in a relatively highly concentrated state for a long time. When we don't use mobile phones, we naturally feel depressed.

Expert advice: You should avoid using your mobile phone for a long time, and don't use it if you can. Relevant evidence affecting work shows that American researchers have found that it takes as long as 15 minutes for people to get back to work if they are interrupted by a phone call while concentrating on their work and study.

Studies have shown that the interference of mobile phones at work may reduce people's creativity and memory. Experts remind: you can turn off your mobile phone when you concentrate on your work, and you can dial through the public fixed line when you want to make a call.

Using mobile phones for five years may cause cancer. After using the mobile phone for one minute, the temperature of brain cells near the ear will rise by 1.5 degrees. Although the cells will not die, the genes in the cells will die. Besides these, using mobile phones can also lead to amnesia and premature Alzheimer's disease.

Experts remind: use less mobile phones and use more public phones. The smaller the mobile phone, the stronger the radiation. The smaller the mobile phone, the stronger the electromagnetic signal, so the signal can be complete. So when you hear that someone's mobile phone is mini, it has strong functions and good reception, don't envy it. Don't be envious when you hear that someone can receive cell phone signals in elevator underpasses and tunnels. This reveals a message: his.

Ten Harms of Playing Mobile Phone

6/6 step-by-step reading hurts the eyes 1) Lying in bed and playing with mobile phones will cause great pressure on the left and right eyes, which will oppress the blood vessels and cause insufficient blood supply, which will soon lead to visual deviation between the left and right eyes.

2) Looking at the screen of a mobile phone in a dark environment will cause a strong sense of * * * to the eyes due to the strong light on the screen, which will make the eyes tired, so that they will be nearsighted or even astigmatism within one month. Especially for children under 3 years old, watch bright things for less than or equal to 15 minutes, so as not to damage their eyesight.

3) Relevant data show that reading words and pictures with mobile phones is more eye-catching than reading books and newspapers, that is, reading things with mobile phones requires greater concentration. 2/6 affects intelligence. In the blood circulation of human body, it is necessary to maintain the balance of positive and negative charges.

However, the constant electric radiation from mobile phones will have an impact on this balance. In the long run, it will reduce your immunity, make you tired easily, and make your body in a sub-health state. Because the balance of positive and negative charges is inseparable from nerve conduction, when nerve conduction in the brain is destroyed, intelligence will decline.

3/6 Sleep reduction Adequate sleep is a necessary guarantee for a healthy life. Because when playing mobile phone, the production of melatonin secreted by pituitary gland (a substance that directly affects the quality of sleep) will decrease, resulting in less sleep and even inability to fall asleep.

I believe that people who play mobile phones until midnight or even later have a deep understanding-they are not sleepy at all and don't want to sleep. 4/6 sickly mobile phones will emit electric radiation, and its radiation intensity has nothing to do with the remaining power, but has a certain relationship with the signal intensity.

The greater the signal intensity, the higher the radiation intensity, and the greater the harm to the body. Electric radiation can make cells unable to carry out normal metabolic activities, which will damage nerve function and cardiovascular system.

It can lead to tumor, heart disease, Alzheimer's disease, tinnitus, hearing loss and so on. 5/6 Damage to skin Radiation will lead to melanin deposition and long spots due to long-term influence on cells.

It can also lead to decreased immunity, bacterial growth, rough skin and even acne. 6/6 Cervical Spine Anti-bow Baidu Encyclopedia says: Cervical Spine Anti-bow is a common cervical spondylosis.

The physiological curvature of cervical spine is normal. If there is no physiological curvature, it even bends in the opposite direction, which is called anti-bow. Therefore, it is a bad habit to play mobile phone in bed for a long time, so don't play mobile phone in bed for the sake of health.

What's the harm of playing mobile phone often?

1, causing blurred vision. Staring at the mobile phone for a long time in a dark room, the light emitted by the mobile phone will make the eye muscles tired, affect the focusing ability, and lead to blurred vision. At first, it may be only temporary visual fatigue, but in the long run, it will become permanent, eventually leading to myopia and even astigmatism.

2, leading to vision deviation People are born with the same degree of eyes. Playing mobile phones in bed for a long time will lead to vision deviation of left and right eyes for one month. Because lying on the left and right has the greatest pressure on the left and right eyes, such a confinement will cause vision deviation of the left and right eyes, and the pressure of the pillow on the eyes will cause insufficient blood supply. After a long time, the eyes will feel bloated and the short-term images will overlap.

3. A new study published in the Journal of Optometry and Visual Science found that when people read text messages or surf the Internet through their mobile phones, their eyes will be closer than holding a book or a newspaper in their hands, which means it is more difficult for them to concentrate on the pictures and texts on their mobile phones, and browsing the web for a long time will lead to dry eyes. In addition, it is more likely to cause headaches and eye fatigue. Therefore, I hope that when I see this information on the website of life tips, you can think about your health and tell each other.

4, affecting the biological clock Using mobile phones, tablets or other luminous electronic products in bed for more than 1 hour will reduce the total amount of melatonin produced by people by about 22%. Once human melatonin is suppressed to this extent, then human physiological cycle will also be affected. The direct impact is that people are always in a shallow sleep state, and even greatly reduce people's sleep time. In other words, after playing the mobile phone for 1 hour, you may have to play it for another 3 hours because you can't sleep.

5, chronic strain neck drooping excessively, the body is not naturally bent, and the neck is leaning forward more and more. This makes the sternocleidomastoid muscle of human neck stretch forward continuously, and it will be in a state of chronic congestion for a long time. Over time, it is easy to oppress vertebral artery, induce cervical spondylosis and cause chronic strain.

Is it harmful to watch mobile phones every day?

American researchers say that cell phone radiation can change human genes. Although this report can't prove that cell phone radiation can destroy DNA, some experiments show that these radiation can cause genetic changes in human blood cells. A British expert also warned that mobile phones may release toxic mercury gas, causing damage to the brain; More and more terrible things may be confirmed by scientists, such as inducing Alzheimer's disease, Parkinson's disease, multiple sclerosis, endangering fertility, premature aging and amnesia.

Many experts in biology, medicine and environmental protection believe that mobile phones are harmful to health. Their point of view is that in order to realize the communication function, the mobile phone must keep in constant contact with the transmitting base station and must receive and send powerful communication radio waves. The strongest part of the radio wave is the top of the mobile phone antenna. In the process of using the mobile phone, the antenna is just closest to the brain, so it will definitely have a negative impact on the human brain.

What are the hazards of using mobile phones for a long time?

1, asthenopia, strabismus.

Whether it is glare on the screen, reading too small font or using the mobile phone under strong light, long-term squinting will produce wrinkles between the eyebrows and accelerate human aging.

2. Acne

Justine Hextall, a dermatologist at Harry Medical Group in the UK, said that long-term use of mobile phones can lead to skin problems and acne. She explained: "Mobile phones carry a lot of bacteria. When making a phone call, facial skin not only directly contacts bacteria, but also secretes sweat and even oil, causing acne problems. "

3, cervical spondylosis and chin droop

Cervical spondylosis is another disease that is prone to long-term use of mobile phones. Looking down at electronic devices such as mobile phones for a long time is the main cause of the disease. If you bow your head for too long, the pressure on the cervical spine will increase, leading to changes in the flexion of the cervical spine, causing cervical disc herniation and cervical instability. People often only pay attention to the facial skin and forget the neck. In fact, the skin of the neck is more fragile than the skin of the face. Therefore, the neck needs to use more moisturizing skin care products.

4. Black spots

Electronic devices used by people emit blue light, and its movement wavelength is similar to ultraviolet light. So many experts say that long-term use of electronic devices such as mobile phones may lead to black spots on the face.

Extended data:

How to use mobile phone correctly

1. It is best to keep away from the head when the mobile phone exhales to avoid radiation to the head when the mobile phone emits high power.

2. Try to reduce the time of using the mobile phone every time and the number of times of using the mobile phone every day. When you need to talk for a long time, it is more scientific to alternate left and right ears or use headphones.

3. When the cell phone signal becomes weak, the cell phone will automatically increase the transmission power of electromagnetic waves, so don't put your ear near the cell phone at this time.

4, don't answer the phone in the corner, the signal coverage in the corner of the building is poor, so it will increase the radiation power of the phone to a certain extent. For the same reason, when you are in a small and closed environment, such as an elevator, you should

5. Pick up the phone and don't walk around. Frequent movement of position will cause fluctuation of received signal strength, resulting in unnecessary short-term high-power transmission.