But thanks to further research, and time, we are starting to understand better the effects of cellphone radiation on health. The World Health Organization already had a rapport in 2011 about cellphones possible dangers: http://www.cnn.com/2011/HEALTH/05/31/who.cell.phones/
Meanwhile, people should learn to use cellphones in a healthy way, and not living 24/24h with them (during sleep, for example). And at home would be better using cables instead of Wi-Fi...