What are EMFs?

"Most people find it difficult to weigh the risks from electromagnetic radiation because the subject is complex, the radiation invisible, and reports seem contradictory and often are sensationalized by the press. Further confounding judgment is the fact that some of the emissions from monitors are similar to those found all around us in our 'electrical civilization'"(40).

EMF is an abbreviation of "electromagnetic field." Any electrical device emits EMFs, including power lines, computer monitors, televisions and cellular phones, but research as to whether they pose a risk to human health is inconclusive. Some studies suggest that prolonged exposure to high levels of EMFs causes different types of cancer, but others refute this claim.

As a result, there is an ongoing debate as to whether the electromagnetic fields are harmful. The National Institute for Occupational Safety and Health suggests that there is minimal risk to workers from EMFs, but it also suggests lowering exposure to magnetic fields just as a precautionary measure (41). What is certain is that the number of electromagnetic signals that the body must handle is unprecedented in human history. While prolonged exposure to EMFs from CRT monitors could potentially be harmful to human health, there is currently no clear answer. There is no need the panic, but it may be wise to err on the side of caution when it comes to EMFs. There are several steps you can take to help protect yourself from electromagnetic radiation:

If at all possible, use a liquid crystal display (LCD) screen instead of a CRT monitor as LCDs emit lower EMFs.
Sit at least two feet away from your monitor as the field decreases the further you sit from the screen.
Most experts recommend staying at least 30 inches from the front of your computer screen and at least 40 inches from the back and sides.
Never sit on the side or the back of the monitor, where radiation is strongest.
Turn your monitor off when it is not in use.
Consider limiting your time in front of the screen or use an LCD if you are pregnant or trying to conceive.
Use a monitor that conforms to MPRII guidelines. Monitors that are in compliance have much lower field levels than their older counterparts (42).