Monday, September 8, 2008


1. Identify the possible health hazards associated with long-term exposure to ICT-Tools
2. State safety precautions for the use of ICT tools.

Although it is unlikely that ICT equipment will be dangerous in itself, it can be used in ways which can be a hazard to our health. In this lesson you will learn about the possible long-term health hazards associated with the use of ICT equipment and guidance in avoiding these health problems.

It is important to note that although ICT makes our lives easier, long term exposure to ICT equipment without precaution may lead to possible health hazards in future. Here are some of the possible health hazards.

Long term exposure to Television affects vision.
Your vision is not suited for staring into the Television set for hours. Staring into the television set for hours can be dangerous and harmful to the eye. By staring continuously you cause the eye to overwork itself and this may lead to eye irritation, such as dry eye; red, itchy, and watery eyes; fatigue, including heaviness of the eyelids or forehead; and difficulty in focusing the eyes.

The negative effects of using a computer does not differ greatly from that of the television. Staring at the computers' monitor for more than two hours a day can lead to eye irritation, such as watery eye's, heaviness of the eyelids or forehead, difficulty in focusing the eyes and fatigue of the eye structures etc. It is therefore important to keep a distance of 20 to 26 inches away from the monitor and arrange your lights sources in order to prevent reflections or glare on the monitor screen.

The Lower Back
Sitting behind the computer for long periods of time or using the wrong kind of chair can lead to pain in the lumbar region of the back. People may experience wrist pains usually because their hands are not positioned properly when typing. Pains in the back, wrists or fingers often occur when you are not able to reach the keyboard and mouse whilst bending your elbows at 90 degrees, with your shoulders relaxed.

Mobile phones and our Health
It is believed that mobile phones can affect the health of people who use them. Research from Finland suggests that mobile phone radiation causes changes in the brain and even low level emissions from headsets are still damaging. However there has not been any major research that provides scientific evidence of the danger of using mobile phones. It is therefore too soon to reach a definitive verdict on health risk from mobile phones. Nevertheless there are some effects that you can have when you do not use the mobile phone properly.
Some of the health effects are,

1. Headaches and tiredness.
Using the mobile phone for hours can be very stressful and may lead to mild or severe headaches.

2. Creates joint pain
Holding the mobile phone to your ear for more than 15 minutes can lead to a strain ligaments in the back of the hand and your wrist.

3. Induce ringing ! in the ears.
You can overwork your eardrum by holding the mobile phone very close to your ear. Keeping the mobile phone close to your ear for a long periods of time may weaken your eardrums, induce ringing in your ears and eventually damage your hearing in future.

Listening to the Radio
The radio is an interesting form of entertainment and can sometimes be closer to us than anybody. Nowadays radio's come in handy. The pocket radio is widely used in Ghana. You can find people walking around with the radio's sets or headphones in their ears. Some people enjoy it when their radio volume is turned up to the highest level. although this seems very entertaining, It is dangerous to listen to loud music because loud sounds tend to weaken your eardrums which may affect your hearing in future.

Public Address Systems
Public Address Systems are also harmful to the human ear. Loud and prolonged sounds emitted from these equipment can cause hearing loss in the

1. Do not answer of receive calls when charging your mobile phones.
2. Correctly position your body when using the computer.
3. Avoid plugging ICT tools in damaged sockets.
4. Do not overload a socket.
5. Do not place radio speakers close to your ears.
6. Use appropriate headsets when using mobile phones to avoid microwave rays from affecting the brain.
7. Do not make the watching of television a habit because prolonged exposure to the rays from the television screen may cause severe eye problems in future.


kojobeng said...

Thanks a lot. my professor will be so proud of me.

Emmanuel Bekoe said...

Thanks a lot «With this anyone can learn something better on ICT TOOLs

Emmanuel Bekoe said...

This is also good for ICT students

Alexander Nii Ashitey Davies said...

Very useful. Thanks a lot.