To reduce your exposure to electro-magnetic
fields, what I usually recommend to my clients is to place all of the electronics as far
away from you as possible. Well, at a reasonable distance that you could that it could be convenient
also. But place it all in one corner so, and have in front of you just your LCD, which
is actually pretty good. It does not radiate, unlike those cathode tube monitors, old style.
So having your laptop, your printer, your whatever else you you might have in your office
far away from you on the side, it actually makes it safer, makes your body less exposed.
So, what actually radiates the most is not laptop itself, but the transformer, that little
black box. So that one, you really want to to have as far away from you as possible.
So mine as, mine is about four feet away, but three feet could probably be the limit
of safe distance.