Dr. Nora D. Volkow, brain scientist, studies brains and cell phone use
Dr. Volkow is part of a team who are affiliated with the National Institute of Drug Abuse. Her previous studies use imaging to explore changes in the brain linked to attention-deficit disorder (ADD), aging, obesity and addictive drugs. She wanted to see if cell phone use would affect the brain.
47 Brave Volunteers
Forty-seven healthy volunteers agree to have 2 cell phones positioned on both ears, keep their eyes and sit in a darkened room for 50 minutes. On the first day, both phones were off. On the second day, one phone was turned on. During this time a medical imaging technology known as a PET (positive emission tomography) was used to measure glucose metabolism.
Did the brain react to the cell phone radiation?
They found out that brain glucose consumption increases with cell phone use in the area closest to the antennae. The team felt this was related to tissue heat when the brain absorbs cell phone radiation. It’s never a good thing when your brain tissue overheats – so below are some tips to keep your brain safe by keeping the heat and radiation out of your head.
Tips to keep your brain safe when using cell phone
- Text more – talk less. Holding the phone away from your brain reduced radiation exposure to your brain!
- Use a speaker or headset to keep the phone away from your head.
- Call when the signal is strong. When the signal is weak, your phone has in boost its signal (more radiation to you)
- Don’t store your phone in your pocket or under your pillow. The phone is broadcasting a signal when it’s on.
- Hold the phone away from your body when in use. Don’t clip it to your belt. The closer the phone is to your head, the more radiation you will absorb.
Link to full study: Volkow ND, Tomasi D, Wang GJ, Vaska P, Fowler JS, Telang F, Alexoff D, Logan J, Wong C. 2011. Effects of cell phone radiofrequency signal exposure on brain glucose metabolism. Journal of the American Medical Association 305 (8), in press.