Yeah, avoiding it is impossible, key word here is REDUCING it. You cannot avoid it but surely you can easily reduce it by 80-90%. I have a meter so I have tested this. Don´t have you cell phone switched on while you got it in your pocked, this is probably the nº1 thing to do IMO... If you have the money I would get and EMF meter and test, you´ll learn a lot on how to reduce exposure

[Cellphone electromagnetic radiation damages the testicular ultrastructure of male rats]. - PubMed - NCBI Conclussion of the study: "CER can damage the testicular ultrastructure and increase the apoptosis of spermatogenic cells of the male rat in a time-dependent manner, and the apoptosis of spermatogenic cells may be associated with the damage to mitochondria".