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Cell Phones & Devices

Radiofrequency (RF) radiation is produced by your phone’s antennas, which in most current models are embedded in the body of the phone itself. As a result, most phone manufacturers warn users not to hold the device directly against the body, but to maintain a separation of about one inch. See our Cell Phone Card for more information and read the fine print of the instruction manual that is included with your phone. Cordless (DECT) phones, iPads, baby monitors and other wireless devices utilize similar wireless technology, and the same precautions should be taken when using these devices.

Dr. Hugh Taylor, Chair of the Department of Obstetrics, Gynecology and Reproductive Science at Yale University School of Medicine and his team of researchers conducted a ground-breaking study (Aldad, et al 2012) where they found that pregnant laboratory mice exposed to ordinary cell phone radiation produced offspring that were more hyperactive and had poorer memories compared to a control group that was not exposed. They concluded that cell phone radiation had damaged neurons in the prefrontal cortex of the brain

Fast Facts

  • All wireless devices emit RF radiation including cell phones, cordless phones, tablets, baby monitors, wireless headsets, routers and wearables.  


  • Studies at Yale University showed neurological damage to the offspring of animals exposed to normal levels of cell phone radiation. 


  • There are simple steps anyone can take to reduce their exposure to RF radiation. 

Another study conducted by the Kaiser Permanente Division of Research in Oakland, California (Li, et al 2017) revealed that pregnant women exposed to high levels of RF radiation from sources like cell phones, other wireless devices, cell towers and other electromagnetic fields miscarried at nearly three times the rate as those exposed to low levels. For more information see our BabySafe Project.

Tips for Reducing Exposures from Cell Phones

  • Use a landline instead of a cell phone or cordless phone whenever possible.

  • Keep cell phones away from your head and body (not in pockets, bras, or belt clips).

  • Use the speaker phone setting or use an “air tube” headset.

  • At bedtime, switch your cell phone to airplane mode or shut the power off.

  • Limit children’s use of cell phones. Young children should not use them at all.

Wireless Routers

Wireless transmitters (“routers”) should not be used in day care facilities, schools, or other places where children spend time. If you are pregnant and must use Wi-Fi at home or at work, do not sit in close proximity to the router and do not position yourself between your device and the router.

• Unplug any domestic wireless transmitter when not in use, especially at night.
• Do not install wireless routers in bedrooms or play areas.
• Avoid wireless baby monitors and cordless phones, which use similar wireless technology.
• If possible, use hard-wired internet connections in your home instead of wireless transmitters.

Cell Phones & Devices Resources

Click here to read some of the most recent independent, peer-reviewed studies on exposure to radiofrequency radiation and human health impacts. 

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