When you get up close and personal with your cellphone, what are you exposing yourself to, literally? Dangerous radiation? Maybe. Nasty germs? Most certainly.

Two studies examining different potential hazards of cellphones have been in the news lately. One concerns the ongoing debate about the radiation risks of extended close contact with your phone, and the other concerns its hospitality to surface germs.

The first study involved members of the advocacy group Environmental Health Trust and was published in the journal Electromagnetic Biology and Medicine. It says that exposure measures per FCC guidelines underestimate how much radiation most people receive from their cellphones, according to a story in the Los Angeles Times.