Being a ubiquitous piece of our lives today, cell phones can as well be very dangerous devices when not used with care and in moderation. The video below sheds some light on the harmful effects of cell phones on us.
There is also a full indepth report on the subject of mobile phones and their harms over here.
Professor Johansson finds that the brain tumor issue is a minor thing compared to many other harmful effects. While brain tumors affect a small percentage other serious effects affect the whole population including genetic damage, sleep disturbances, reduced learning capacity, concentration difficulties and psychological problems.