While we all knew this for a long time, a new study is out that con­firms extended use could cause cancer.

CNN Arti­cle

TIPS for some­what healthy usage:

1. Use the speaker phone as much as possible.
   1. Where not pos­si­ble, use a WIRED head­set
   2. Where wired is not pos­si­ble, use a Blue­tooth head­set (Blue­tooth poses its own unknown long-term risk)
2. Do not let kids use cell phones, their skulls are thin­ner and ram­i­fi­ca­tions might be worse
3. If you use your cell phone as an alarm clock, keep it at least 3 feet from your body overnight (don’t put it under your pillow)
4. When your sig­nal is very low, the cell phone boosts the power to try keep the call con­nected and/or get a bet­ter sig­nal.  It is more dan­ger­ous at these times because radi­a­tion lev­els are greater than when you have a full signal.
5. Do not put a cell phone in your pants/shorts pocket, espe­cially when on a call.  Just like the extended radi­a­tion can dam­age your brain, it can dam­age other parts of your body too.  With­out a thick, hard skull to pro­tect it, your other organs are more at risk.

There are some prod­ucts on the mar­ket to help cut down on radi­a­tion emit­ted from cell phones…

• Anti-Radiation shield sticker
• Cell-Shield phone case
• Safewire­less Anti-Radiation case for iPhone

NOTE:  I haven’t used these prod­ucts to con­firm their effec­tive­ness, how­ever, the doc­u­men­ta­tion on each is com­pelling enough to con­sider them.

Be safe.

UPDATE-June 1, 2011:

There is a new link that lets you search for your phone to see how much radi­a­tion it emits.

http://www.cnn.com/interactive/2011/06/tech/table.phone.radiation/index.html