Cell Phones Linked To ADHD And Weak Bones
ADHD Linked To Cell Phone Use
As reported by ScienceDaily (3/12) Cell Phone Use in Pregnancy May Cause Behavioral Disorders in Offspring, Mouse
Exposure to radiation from cell phones during pregnancy affects the brain
development of offspring, potentially leading to hyperactivity, Yale School of
Medicine researchers have determined.
The results, based on studies in mice, are published in the March 15 issue of
Scientific Reports, a Nature publication. "This is the first experimental
evidence that fetal exposure to radiofrequency radiation from cellular
telephones does in fact affect adult behavior," said senior author Dr. Hugh S.
Taylor, professor and chief of the Division of Reproductive Endocrinology and
Infertility in the Department of Obstetrics, Gynecology & Reproductive Sciences.
Taylor and co-authors exposed pregnant mice to radiation from a muted and
silenced cell phone positioned above the cage and placed on an active phone
call for the duration of the trial. A control group of mice was kept under the
same conditions but with the phone deactivated.
The team measured the brain electrical activity of adult mice that were exposed
to radiation as fetuses, and conducted a battery of psychological and
behavioral tests. They found that the mice that were exposed to radiation
tended to be more hyperactive and had reduced memory capacity. Taylor
attributed the behavioral changes to an effect during pregnancy on the
development of neurons in the prefrontal cortex region of the brain.
Attention deficit hyperactivity disorder (ADHD), is a developmental disorder
associated with neuropathology localized primarily to the same brain region,
and is characterized by inattention and hyperactivity. "We have shown that
behavioral problems in mice that resemble ADHD are caused by cell phone
exposure in the womb," said Taylor. "The rise in behavioral disorders in human
children may be in part due to fetal cellular telephone irradiation exposure."
Taylor said that further research is needed in humans to better understand the
mechanisms behind these findings and to establish safe exposure limits during
pregnancy. Nevertheless, he said, limiting exposure of the fetus seems
First author Tamir Aldad added that rodent pregnancies last only 19 days and
offspring are born with a less-developed brain than human babies, so further
research is needed to determine if the potential risks of exposure to radiation
during human pregnancy are similar. "Cell phones were used in this study to
mimic potential human exposure but future research will instead use standard
electromagnetic field generators to more precisely define the level of
exposure," said Aldad. Other Yale authors on the study include Geliang Gan and
The study was funded by grants from the Eunice Kennedy Shriver National
Institute of Child Health & Human Development, and Environment and Human Health, Inc.
Cell Phones Linked To Weak Bones
As reported by Medical News Today (3/11) Cell Phone Exposure May Cause Bone Weakening, Study Suggests
Electromagnetic radiation from cellular phones may adversely affect bone
strength, suggests a study in the March Journal of Craniofacial Surgery. The
journal is published by Lippincott Williams & Wilkins, a part of Wolters Kluwer Health.
Men who routinely wear their cell phone on their belt on the right side have
reduced bone mineral content (BMC) and bone mineral density (BMD) in the right
hip, according to the study by Dr. Fernando D. Sravi of National University of
Cuyo, Mendoza, Argentina. He writes, "The different patterns of right-left
asymmetry in femoral bone mineral found in mobile cell phone users and nonusers
are consistent with a nonthermal effect of electromagnetic radiofrequency waves
not previously described."
Dr. Sravi measured BMC and BMD at the left and right hip in two groups of
healthy men: 24 men who did not use cell phones and 24 men who carried their
cell phone in a belt pouch, on the right side, for at least one year. Measured
using a test called dual-energy x-ray absorptiometry, BMC and BMD are standard
markers of bone strength.
Average hip BMC and BMD measurements were not significantly different between
groups. However, men who did not use cell phones had higher BMC in the right
femoral neck (near the top of the thigh bone): a normal left-right difference
that was absent in cell phone users. Thus men who wore their cell phones on the
right side had a relative reduction in femoral neck BMC in that hip.
The cell phone users also had reduced BMD and BMC at the right trochanter an
area at the outside top of the thigh bone, close to where the phone would be
worn on the belt. The difference between the left and right trochanters was
significantly related to the estimated total hours spent carrying a cell phone.
There are concerns about several potential harmful effects of cellular phones.
However, few studies have looked at whether electromagnetic fields emitted by
cell phones could affect bone mineralization. With the rapid growth in cell
phone use, any significant effect on BMD could have a substantial effect on the
osteoporosis rate in the population.
Although small, the new study raises the possibility that long-term exposure to
electromagnetic radiation from cell phones could adversely affect bone
mineralization. Larger follow-up studies will be needed to confirm or disprove
this hypothesis, according to Dr Sravi. He suggests that studies may be
warranted in women, who have higher rates of osteoporosis; and children, who
would have longer expected lifetime exposure to cell phones.