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Do Cellphones Cause Brain Cancer?

Do Cellphones Cause Brain Cancer?

Q: I talk on my cellphone a lot… am I at risk for getting brain cancer (or any kind of cancer) from my frequent use?

A: Like a lot of things in science, this is a controversial subject because the evidence we have makes it difficult to determine a true cause and effect relationship.

Cell phones do emit small amounts of radiation, and while it is thought that the amount of radiation is insufficient to cause cellular damage, three studies since 1999 indicate that people who have used cell phones for more than a decade may have as much as three times greater risk of developing brain tumors on the side of the head against which they most often hold their phone—an argument for, at the least, shifting ears regularly or, even better, using an earpiece or the speakerphone feature while chatting.  Even better… turn the phone off and put it down for a while.

Dr. Brent Ridge is the health expert for Martha Stewart Living Omnimedia. You can call and ask him a question live every Tuesday at 2 p.m. Eastern on Sirius Satellite Radio, Channel 112 (1.866.675.6675). You can also follow along as he learns to grow his own food, raise goats, and make goat milk soap on his farm in upstate New York by visiting

Got a health question for Dr. Brent? E-mail him at

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Dr. Brent

As an undergraduate, Dr. Brent Ridge majored in public health and environmental science, studying the way the state of the natural environment impacts our health choices. As a physician, he specializes in the field of aging. Send your health questions to Dr. Brent at


+ add your own
9:02AM PST on Jan 2, 2014

I agree with Abbey M.

9:10PM PST on Dec 3, 2013

Thank you.

2:15AM PDT on Jul 23, 2013

Thank you :)

2:11AM PDT on Apr 1, 2013


5:15AM PST on Mar 3, 2013

No matter what, be careful

4:25PM PST on Jan 6, 2013

Thank you Dr. Brent, for sharing this!

1:09AM PDT on Sep 13, 2012

thanks for sharing

2:45PM PDT on Aug 31, 2012

Thank you for info.

2:45PM PDT on Aug 31, 2012

Thank you for info.

8:49AM PDT on Apr 27, 2012

wish there were definitive research

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Disclaimer: The views expressed above are solely those of the author and may not reflect those of
Care2, Inc., its employees or advertisers.


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