Bruny, Maño, Nicolás, Martha CBC March 2012 ICT (Technology)
Introduction Objective Topics Eye Strain Back and Neck Ache RSI Ozone irritation Conclusion Bibliography
With modern inventions human life has improved however there have also been negative consequences, permanent use of technology may lead to health problems. Since we are always in contact with computers and smart phones it is important to know what provokes health issues and how to prevent them.
Find the effects that the use of ICT could cause on humans health. Pointing out how the physical and psychological effects, on a short and long term. Identify neck and back problems caused by the use of ICT The effects of ozone emitted by printers The problems that affect humans physical health in general
Eye-Strain is a problem that appears after using computers for a long time. Eye-strain is tiredness of the eyes. Caused by: Staring at the screen for too long Being too close to the screen Using a screen which flickers Looking at the monitor at the same constant distance. Working in bad light, in glare or with a flickering screen. What happens is that the muscles that focus the eyes do not move, and therefore your eyes get tired.
Symptoms: Preventions Burning or itching eyes Have a regular eyes test Blurring or double vision Take regular breaks Headache, fatigue and Use proper lightning and nausea window blinds Get glasses Use TFT/LCD/Plasma screens
Caused by bad position or bad posture While using the computer, or cellphone for a long time Leads Health problems such as: Neck ache Back ache
A fully adjustable chair should avoid poor posture. Footrests can reduce these problems. Screens should tilt and turn to a position that avoids awkward movements.
Distance between your eyes and the monitor, or the angle for your elbows and knees. Take regular breaks Sit in an adjustable chair with lumbar support Your feet should be rest Allow forearms to rest on it when using the keyboard "When you sit, it is best to sit in an upright neutral posture . This maintains the natural curve of the spine and so preventing excessive loading of the lower back”
Is damage to the fingers, wrists and other parts of the body due to repeated movements over a long period of time. Causes Typing and using a mouse for long periods (carpal-tunnel syndrome). Excessive force used in typing Repetitive finger and hand movements
Solutions Have correct posture Symptoms Use wrist rests Pain in arms and hands Have a five-minute break Weakness and inflammation from typing every hour. Pain in shoulder and neck Keep elbows close to your sides Make finger exercises periodically
Ozone, or trioxygen, is a triatomic molecule, consisting of three oxygen atoms. It is an allotrope of oxygen that is much less stable than the diatomic allotrope (O2). Ozone in the lower atmosphere is an air pollutant with harmful effects on the respiratory systems of animals and will burn sensitive plants; however, the ozone layer in the upper atmosphere is beneficial, preventing damaging ultraviolet light from reaching the Earths surface. Ozone is present in low concentrations throughout the Earths atmosphere. It has many industrial and consumer applications.
Health experts have suggested that ozone emitted from laser printers can lead to breathing problems. Solution It is recommended that laser printers should be situated at least one meter away from where people are sitting and there should be good ventilation in the area.
People must be careful with they use they give to technology. If people are well informed about the health problems the constant use ofgthecnology generates they can take preventive measures. Mainly the solution is to be aware of the problem.