Thursday, June 12th, 2014
Men who routinely carry smartphones in their pants pockets may end up with a lowered sperm count and lessened sperm quality, according to a new British study that examines the effects of the phones’ low levels of electromagnetic radiation. More from Time.com:
Even while the debate over whether cell phones cause cancer rages on, researchers are starting to explore other potentially harmful effects that the ubiquitous devices may have on our health. Because they emit low-level electromagnetic radiation (EMR), it’s possible that they can disturb normal cell functions and even sleep.
And with male infertility on the rise, Fiona Mathews at the University of Exeter, in England, and her colleagues decided to investigate what role cell phones might play in that trend. In their new research, they analyzed 10 previous studies, seven of which involved the study of sperm motility, concentration and viability in the lab, and three that included male patients at fertility clinics. Overall, among the 1,492 samples, exposure-to-cell-phone EMR lowered sperm motility by 8%, and viability by 9%.
Image: Man with phone in pocket, via Shutterstock
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Wednesday, May 21st, 2014
A new study by British researchers will be the largest-ever to examine whether chronic use of mobile phones and other wireless devices affects kids’ and teenagers’ brain development. Reuters has more:
The Study of Cognition, Adolescents and Mobile Phones, or SCAMP, project will focus on cognitive functions such as memory and attention, which continue to develop into adolescence – just the age when teenagers start to own and use personal phones.
While there is no convincing evidence that radio waves from mobile phones affect health, to date most scientific research has focused on adults and the potential risk of brain cancers.
Because of that, scientists are uncertain as to whether children’s developing brains may be more vulnerable than adults’ brains – partly because their nervous systems are still developing, and partly because they are likely to have a higher cumulative exposure over their lifetimes.
“Scientific evidence available to date is reassuring and shows no association between exposure to radiofrequency waves from mobile phone use and brain cancer in adults in the short term – i.e. less than 10 years of use,” said Paul Elliott, director of the Centre for Environment and Health at Imperial College London, who will co-lead the research.
“But the evidence available regarding long term heavy use and children’s use is limited and less clear.”
Mobile phone use is ubiquitous, with the World Health Organisation estimating 4.6 billion subscriptions globally. In Britain, some 70 percent of 11 to 12 year-olds now own a mobile phone, and that figure rises to 90 percent by age 14.
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Image: Teen on cell phones, via Shutterstock
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Monday, October 8th, 2012
A new study in the Journal of Pediatric Psychology has found that teenagers in Japan who use cell phones or other mobile devices after they go to bed face a higher risk of having sleep problems and related mental health problems including depression. From Boston.com:
In the study, researchers investigated nearly 18,000 children in junior high and high schools in Japan, with subjects answering questions about their mental health, in addition to sleep and mobile phone habits. The study follows prior research that finds poor sleep is associated with mental problems in teens. For example, a study published last year in the Journal of Psychiatric Research found teens who had difficulty sleeping were at an increased risk for suicidal thoughts.
Image: Cell phone, via Shutterstock
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Tuesday, September 18th, 2012
Teenagers who engage in “sexting,” or sending sexually explicit text messages, are 7 times more likely than their peers to be sexually active in the non-virtual world, a new study published in the journal Pediatrics has found. Further, the study found that because sexting is a risky behavior, the practice also puts teens at higher risk for having risky sex, putting them in danger of contracting HIV and other sexually transmitted diseases. From CNN:
“The same teens who are engaging in digital sex risk taking through sexting are also the same teens that are engaging in sex risk with their bodies in terms of being sexually active and not using condoms,” said lead study author Eric Rice, an assistant professor at the University of Southern California’s School of Social Work in Los Angeles.
A 2009 report from the Pew Research Center found that some teens “view sexting as a safer alternative to real life sexual activity.”
While the term ”sexting” may also include messages also sent over the Internet, this particular study looked solely at cell phone text messages and images. It was conducted via questionnaire in the Los Angeles Unified School District. Researchers surveyed 1,839 students ages 12 to 18 at random. Most were Latino or African-American. Three-quarters of those surveyed had cell phones.
“Even though a minority of teens sext – we only found 15% – but that 15% are much riskier with their physical sexual behaviors as well as their digital sexual behaviors,” says Rice.
He add that teens who reported sexting were seven times more likely to be sexually active than their peers who did not sext.
Image: Teen sending text message, via Shutterstock
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Monday, December 5th, 2011
A new study has found that while one out of ten 10-17-year-olds has sent or received a sexually suggestive text message on a cell phone, only out of 100 of those images would constitute “child pornography” as it is currently defined by the law. The New York Times reports that though the study, which was published in the journal Pediatrics, does not point to widespread child pornography on cell phones, the data does confirm that tweens and teens are using technology as part of exploring their sexuality:
Over all, the new report found, 149 youths interviewed for the study, or 9.6 percent, said they had sent or received images that included full or partial nudity in the previous year. Just over 2 percent of those who engaged in sexting said they had appeared in the pictures or had taken them themselves, and 7.1 percent said they received sexual images from someone else.
In most cases, the motivations for sending or forwarding sexual texts were not malicious. Most of the youths who sent such messages said that they did so with someone they were involved in a relationship with, or that their messages were flirtatious gestures to someone they had a romantic interest in.
About 31 percent who appeared in or took sexual images said that alcohol or drug use had been a factor. And despite public concerns about lewd photographs of minors that start out as private messages becoming widely distributed, only 3 percent of the minors in the study said they had forwarded sexual photographs that they had received.
The fact that about a third of sexual messages were created or sent when alcohol or drugs were involved suggests that the children who are doing the riskiest messaging are engaging in other risky behaviors as well, said Nancy Baym, a professor of communication studies at the University of Kansas and author of the book “Personal Connections in the Digital Age.”
Image: Teenage girl texting, via Shutterstock
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