A study in the mid-1980s showed the cactus plants have the ability to reduce EMF (electromagnetic field). Workers who placed a cactus in front of their computer monitor for two months reported feeling less tired and experienced less headaches. The cactus absorbs some of the harmful computer radiation which results in adverse health effects. There aren't many sources to validate whether this is actually true or not, but I figured it could be to some extent since plants are good for our environment. Cacti are not that expensive either. I got my silver ball cactus at Orchard Hardware for 4 bucks 3nodding


My handsome little cactus xd It's going to grow up to 10 inches in diameter.

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Sources:
http://www.ehow.com/how_4995339_prevent-computer-radiation.html
http://www.thedailygreen.com/going-green/tips/cactus-electromagnetic-fields-emf-461209