Center for Family and Community Health School of Public Health University of California, Berkeley

Factsheets, scientific studies and public lectures on cell towers, cell phone radiation and health risks by Dr. Moskowitz, Director of the Center for Family and Community Health School of Public Health University of California, Berkeley.

Health Effects of Cellphone & Cell Tower Radiation: Implications for 5G” with Dr. Joel Moskowitz, Occupational and Environmental Health and Safety Webinars

Dr. Joel Moskowitz, University of California Berkeley Cell Phone Safety Tips



  • Keep a distance. Avoid holding your cell phone or cordless phone near your head or body during phone calls. Don’t carry your cell phone in your pocket, in your bra, or close to your body when it is powered on. Especially keep the phone away from your head and reproductive organs. Use speakerphone, text, or wired headset. Avoid talking longer than necessary.
  • Wait for a good signal. When the signal is poor, your wire- less devices emit more radiation so avoid use when surround- ed by metal such as in an elevator, or while travelling in auto- mobiles, buses, trains or aircraft.
  • Reduce secondhand exposure. Reduce the time you spend in locations where many people are using cell phones in close proximity to each another, especially on public transit.
  • Turn off wireless devices at bedtime. Turn off your cell phone, Wi-Fi router, and other wireless devices at bedtime and at other times when not in use.
  • Minimize children’s use & exposure to wireless radiation. Children’s health risks are greater so limit their use of cell phones and other wireless devices. Turn off Wi-Fi and cellular on devices used by kids. Teach children to use wireless technology safely.
  • Pregnancy & fertility. If you are pregnant or planning for a baby be especially careful as wireless radiation exposure is linked to reproductive health effects and also to sperm damage. Do not use a wireless tablet or laptop in your lap.
  • Use airplane mode. Turn off cell phones and other wireless devices when not in use or switch to Airplane Mode. Turn off Wi-Fi and Bluetooth when not in use.
  • Use wired connections. Use a wired, land line phone whenever possible. Forward cell phone calls to your land line and check on them when you get home. Use wired Internet connections.
  • Electromagnetic hypersensitivity. If you think you are devel- oping allergic symptoms from wireless radiation exposure, keep a log of your exposures and your symptoms. Then reduce your exposures for two weeks, and see if your symptoms are re- duced. Discuss the results with your healthcare provider.
  • Governmental action is essential. Send the International EMF Scientist Appeal ( to your elected representa- tives. Ask them to adopt policies to make wireless technology safer. Encourage them to fund education and research through a modest fee on mobile device subscriptions (e.g. a nickel a month). Work with others to get schools to remove Wi-Fi and provide students with Internet access via wired networks.


Dr. Joel Moskowitz, University of California Berkeley Cell Phone Safety Tips

Scientific American: We Have No Reason to Believe 5G is Safe. by  Joel Moskowitz PhD

Berkeley News, Moskowitz: Cellphone radiation is harmful, but few want to believe it

Dr. Moskowitz has a scientific blog Electromagnetic Radiation Safety

What investigative reports have been done on cell phone radiation?

What films can I watch on cell phone radiation?

















Films, documentaries and news reports on wireless radiation and health featuring top experts from CNN, CBC and PBS investigations.

Santa Clara California Medical Association  

In March 2023 the Santa Clara California Medical Association issued School Best Practices Recommendations  which includes:

  • Creating a “Safe Tech in Schools Program” to educate students and staff on how to use devices safely and reduce wireless use in the classroom
  • Using blue light reduction methods to reduce eye strain
  • Establishing and promoting school cell phone-free policies
  • Preferring and installing hard-wired ethernet devices instead of wireless wherever possible
  • Consulting with an RF professional who can measure radiofrequency radiation
  • Avoiding installation of smart meters on school premises
  • Considering a policy to restrict installation of cell towers on school property

Download the School Best Practices.

The Santa Clara California Medical Association has developed numerous resources such as articles published in the Santa Clara California Medical Association about 5G, wireless in schools and the impacts on learning and more. 

“A growing body of peer reviewed research is showing neurologic damage to fetal brain and other systems from Wi-Fi and other microwave wireless sources.”

Read all the Santa Clara Medical Association Bulletin Articles by Dr. Cindy Russell. 

Dr. Cindy Russell helped form Physicians for Safe Technology in 2016. She serves as its executive director and helps educate clinicians on the adverse effects of technology use. Physicians for Safe Technology provides the tools for diagnosis and treatment and works with policy makers to help them understand the need for public policy actions that avoid or reduce threats to health and the environment. 


The Association held an environmental health continuing education series that featured the health effects of technology moderated by Dr. Cindy Russel, executive Director of Physicians for Safe Technology and author of numerous articles about wireless and health.


In 2015, Dr. Cindy Russell  of the Santa Clara Medical Association moderated a Wireless Technology and Public Health conference  in Mountain View, California sponsored by the Santa Clara County Medical Association Alliance Foundation.

Joel M. Moskowitz, PhD, Director, Center for Family and Community Health, U.C. Berkeley School of Public Health presented as well as several others. Watch all the videos here.


What You Need To Know To Keep Your Family Healthy

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Children deserve safe and healthy technology. We are educating families on how to make smarter choices and pushing for stronger laws to protect children’s future. 

Join our community to stay up to date. Together, we will support safe tech for our kids. 


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