Navigation Links
Cell Phones Affect Areas of the Brain, Study Shows
Date:2/23/2011

By Amanda Gardner
HealthDay Reporter

TUESDAY, Feb. 22 (HealthDay News) -- A one-hour cell phone conversation stimulates the areas of your brain closest to the phone's antenna, but experts say they still have no idea whether these effects pose any long-term health risk.

"We don't know whether this is detrimental or whether it could have some potential beneficial effects. We don't know one way or the other," said Dr. Nora Volkow, who is lead author of the study published in the Feb. 23 issue of the Journal of the American Medical Association. "Studies need to be done to see if there are long-lasting consequences. It's an important question."

For the time being, the best bet is to use an ear piece or the speaker phone, "particularly in children and adolescents whose brains are much more vulnerable to insults of certain kinds," said Volkow, who is director of the U.S. National Institute on Drug Abuse.

Or you could follow the example of kids and teenagers and use text messaging, so the phone is nowhere near your head.

"These solutions are so simple, trivial," Volkow noted.

There's been a lengthy scientific back-and-forth on whether cell phone use -- now practically ubiquitous across the world -- is harmful to your health, and specifically whether it can cause brain cancer, but no definitive answer has yet emerged.

For this study, 47 volunteers were brought into a lab at the U.S. National Institutes of Health, where they had cell phones positioned at both their left and right ears.

Researchers measured metabolism of glucose in the brain -- a measure of how hard the organ is working -- using positron emission tomography (PET) scans. Metabolism in the orbitofrontal cortex and temporal pole regions of the brain, those closest to the antenna, was about 7 percent higher when the right phone was in the "on" position than when both phones were off.

The brain activity decreased with distance from the antenna.

"That [level of brain activity] is what we see normally when viewing a movie," said Volkow.

But the simulation was exactly that, a simulation, and not the typical scenario where people walk, drive and eat while not only listening to their cell phone but also talking on the gadget, experts noted.

"It is not real world," said Dr. Giuseppe Esposito, chief of nuclear medicine at Georgetown University Hospital and an associate professor of radiology at Georgetown University Medical Center in Washington, D.C. "Obviously, this is not what you do normally," he added.

"I don't think we can draw any conclusions as to the health effects of cell phones in general or radiofrequency simulations from this study," he noted.

No one yet knows whether "exposure to these external sources, two to three hours a day for five to 10 years [is going to result] in any untoward effects," Volkow said. "And if you get exposed very early on when the brain is very plastic, would there be any detrimental effects? That's an important question that needs to be addressed."

Nor is it clear what part of the brain might be affected, given that older cell phones had antennas closer to the brain than newer ones, like those used in this study, which are closer to the mouth.

Volkow is now planning a retrospective study to see if long-time cell phone users -- say, two hours a day over 10 years -- have any obvious health consequences.

In a statement, John Walls, vice president of public affairs for CTIA-The Wireless Association, had this to say: "Since we are not a scientific organization, with respect to the matter of health effects associated with wireless base stations and the use of wireless devices, CTIA and the wireless industry have always been guided by science, and the views of impartial health organizations. The peer-reviewed scientific evidence has overwhelmingly indicated that wireless devices, within the limits established by the [U.S. Federal Communications Commission], do not pose a public health risk or cause any adverse health effects."

More information

For more on cancer and cell phones, visit the U.S. National Cancer Institute.

SOURCES: Nora D. Volkow, M.D., director, National Institute on Drug Abuse, U.S. National Institutes of Health; Giuseppe Esposito, M.D., chief, nuclear medicine, Georgetown University Hospital, and associate professor, radiology, Georgetown University Medical Center, Washington, D.C.; John Walls, vice president, public affairs, CTIA-The Wireless Association; Feb. 23, 2011, Journal of the American Medical Association


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Formotus Announces Support for Mobile Business Forms on Android Phones
2. ANT+ and Texas Instruments connect proven ultra low power sensors to smartphones
3. Cell Phones, Video Games Dont Spur Teen Headaches
4. Can mobile phones help people EatWell?
5. Hope Phones, IntraHealth and FrontlineSMS:Medic Collaborate on Phone Donation Campaign to Support Health Workers in Africa
6. Few drive well while yakking on cell phones
7. For Vast Majority, Driving and Cell Phones Dont Mix
8. Indiana Paging Network and Onset Technology Partner to Deliver Paging Messages to Blackberry Smartphones
9. HIPAA HITECH Compliant Mobile Apps Available for Android, Blackberry and Windows Mobile Smartphones
10. Worlds biggest study on cell phones and brain cancer inconclusive
11. VoIP Supply Adds Yealink IP Phones
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Cell Phones Affect Areas of the Brain, Study Shows 
(Date:6/26/2016)... ... ... PawPaws brand pet supplements owned by Whole Health Supply is ... of felines. The formula is all-natural and is made from Chinese herbs that have ... Kidney Support Supplement Soft Chews are Astragalus Root Extract and Rehmannia Root Extract ...
(Date:6/25/2016)... ... 2016 , ... Experts from the American Institutes for Research ... June 26-28, 2016, at the Hynes Convention Center in Boston. , AIR experts ... planning, healthcare costs and patient and family engagement. , AIR researchers will be ...
(Date:6/25/2016)... Viejo, California (PRWEB) , ... June 25, 2016 , ... ... to fit their specific project," said Christina Austin - CEO of Pixel Film Studios. ... fully customizable and all within Final Cut Pro X . Simply select a ...
(Date:6/25/2016)... , ... June 25, 2016 , ... ... and non-athletes recover from injury. Recently, he has implemented orthobiologic procedures as a ... area —Johnson is one of the first doctors to perform the treatment. Orthobiologics ...
(Date:6/24/2016)... ... June 24, 2016 , ... A recent article published June ... with. The article goes on to state that individuals are now more comfortable seeking ... common operations such as calf and cheek reduction. The Los Angeles area medical group, ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... 2016 Any dentist who has made an implant ... process. Many of them do not even offer this as ... high laboratory costs involved. And those who ARE able to ... a high cost that the majority of today,s patients would ... Parsa Zadeh , founder of Dental Evolutions Inc. and inventor ...
(Date:6/23/2016)... LOS ANGELES , June 23, 2016 /PRNewswire/ ... (NASDAQ: CAPR ), a biotechnology company ... first-in-class therapeutics, today announced that patient enrollment in ... progrEssion in Duchenne) has exceeded 50% of its ... its enrollment in the third quarter of 2016, ...
(Date:6/23/2016)... 2016  Astellas today announced the establishment of Astellas Farma Colombia (AFC), a new affiliate with operations headquartered in ... America . ... ... ... ...
Breaking Medicine Technology: