Shedding Light in the Darkness
Monthly Archives: May 2016
May 28, 2016Posted by on
According to the World Health Organization, as of 25 May 2016, 60 countries and territories report continuing mosquito-borne transmission of which: 46 countries are experiencing a first outbreak of Zika virus since 2015, with no previous evidence of circulation, and with ongoing transmission by mosquitos. 14 countries reported evidence of Zika virus transmission between 2007 and 2014, with ongoing transmission. Read more of this post
May 28, 2016Posted by on
Kaiser Permanente, the largest managed healthcare organization in the United States, has published a remarkable nutritional update for physicians – informing doctors that healthy eating may best be achieved with a plant-based diet, defined as a regimen that “encourages whole, plant-based foods and discourages meats, dairy and eggs as well as all refined and processed food.” Read more of this post
May 27, 2016Posted by on
Scientific American reports on a major new $25 million animal study that tested the possibility of links between cancer and chronic exposure to the type of radiation emitted from cell phones and wireless devices. The study’s author says the relationship between radiation exposure and cancer is clear. It presents some of the strongest evidence to date that such exposure is associated with the formation of rare cancers in at least two cell types in the brains and hearts of rats.
The results, which were posted on a prepublication website run by Cold Spring Harbor Laboratory, are poised to reignite controversy about how such everyday exposure might affect human health.
Researchers at the U.S. National Toxicology Program, a federal interagency group under the National Institutes of Health, led the study. They chronically exposed rodents to carefully calibrated radiofrequency (RF) radiation levels designed to roughly emulate what humans experience in their daily lives. The animals were placed in specially built chambers that dosed them with varying amounts and types of this radiation for approximately nine hours per day throughout their two-year lifespans.
“This is by far—far and away—the most carefully done cell phone bioassay, a biological assessment. This is a classic study that is done for trying to understand cancers in humans,” says Christopher Portier, a retired head of NTP who helped launch the study and still sometimes works for the federal government as a consultant scientist. “There will have to be a lot of work after this to assess if it causes problems in humans, but the fact that you can do it in rats will be a big issue. It actually has me concerned, and I’m an expert.”
The International Agency for Research on Cancer in 2011 classified RF radiation as a possible human carcinogen. But data from human studies has been “inconsistent,” NTP has said on its website. Such studies are also hampered by the realities of testing in humans, such as recall bias—meaning cancer patients have to try to remember their cell phone use from years before, and how they held their handsets. Those data gaps prompted the NTP to engage in planning these new animal studies back in 2009.
The researchers found that as the thousands of rats in the new study were exposed to greater intensities of RF radiation, more of them developed rare forms of brain and heart cancer that could not be easily explained away, exhibiting a direct dose-response relationship. Some of the rats had glioma—a tumor of the glial cells in the brain—or schwannoma of the heart. Furthering concern about the findings: In prior epidemiological studies of humans and cell phone exposure, both types of tumors have also cropped up as associations.
In contrast, none of the control rats—those not exposed to the radiation—developed such tumors. But complicating matters was the fact that the findings were mixed across sexes: More such lesions were found in male rats than in female rats. The tumors in the male rats “are considered likely the result of whole-body exposure” to this radiation, the study authors write.
Based on these findings, Portier said that the relationship between radiation exposure and cancer is clear. “I would call it a causative study, absolutely. They controlled everything in the study. It’s [the cancer] because of the exposure.”
In the study rats were exposed to RF at 900 megahertz. There were three test groups with each species of each sex, tested at different radiation intensities (1.5, 3 and 6 W/Kg), and one control group. (The lowest-intensity level roughly approximates the levels allowed by U.S. cell phone companies, which is 1.6 W/Kg). Rodents across all the test groups were chronically exposed to RF for approximately nine hours spread out over the course of the day.
The experiments also included both types of modulations emitted from today’s cell phones: Code Division Multiple Access and Global System for Mobile. (Modulations are the way the information is carried, so although the total radiation levels were roughly the same across both types, there were differences in how radiation is emitted from the antenna—either a higher exposure for a relatively short time or a lower exposure for a longer time.) Overall, there was no statistically significant difference between the number of tumors that developed in the animals exposed to CDMA versus GSM modulations.
The question is, ‘Should one be concerned?’ The answer is clearly ‘Yes,” says David Carpenter, a public health clinician and the director of the Institute for Health and the Environment at the University of Albany.
This animal study was designed primarily to answer questions about cancer risks humans might experience when they use phones themselves, as opposed to smaller levels of exposure from wireless devices in the workplace, or from living or working near cell phone towers. But it may have implications for those smaller levels as well, Portier says.
The findings shocked many scientists who had been closely tracking the study. “I was surprised because I had thought it was a waste of money to continue to do animal research in this area. There had been so many studies before that had pretty consistently not shown elevations in cancer. In retrospect the reason for that is that nobody maintained a sufficient number of animals for a sufficient period of time to get results like this,” Carpenter says.
There are safety steps individuals can take, Carpenter says. Using the speakerphone, keeping the phone on the desk instead of on the body and using a wired headset whenever possible would help limit RF exposure.
May 23, 2016Posted by on
At a “space out” Relax Your Brain event in South Korea about 60 people spent 90 minutes sitting in a public park in Seoul without talking, sleeping, eating or using any electronic devices during the time.
The “space out” competition was launched by local activists in 2014. Sunday’s event – organised by Seoul city council – drew more than 1,500 online applicants for the available places in the competition.
“Let our brain – never free from information overload from a smartphone, TV or computer – relax!” the council said in a statement. “Let’s enjoy just thinking nothing!”
Participants are also not allowed to look at their watches or move around too much. The person measured as having the most stable heart rate is adjudged the winner. On Sunday the honors went to a famous local rapper. “I was so exhausted physically and mentally while preparing an album, so I just wanted to relax for a while,” said Shin Hyo-Seob, a.k.a. Crush.
“This event is highly recommended for those who have migraines or complicated thoughts,” the 28-year-old said, holding his glass trophy.
“I came up with the idea for the competition while spacing out,” the event’s organizer is quoted as saying on a Korean news site. A 9-year-old girl paid the least attention in the 2014 contest. Her mother said, “I took my daughter to this event because I had been scolding her after when her school teacher said that she was spacing out.”
More than 80 per cent of South Korea’s 50 million people have smartphones, with a growing fixation on everything digital seen as a serious problem.
May 22, 2016Posted by on
Toxic substances, melatonin suppression and maybe retina damage have all been indicated for LED lighting. Research published in the Journal of Environmental Management shows that nighttime exposure to certain types of artificial light has an even darker side than previously understood. In particular, it suppresses the body’s ability to make melatonin, the hormone that helps regulate sleep and is celebrated for its antioxidant, mood-enhancing and cancer-fighting properties. Read more of this post
May 20, 2016Posted by on
Researchers from the Institute of Psychiatry, Psychology & Neuroscience at King’s College London have found that nearly 70 per cent of the young adults with Attention-deficit/hyperactivity disorder (ADHD) in their study did not meet criteria for the disorder at any of the childhood assessments. Adults with this ‘late-onset’ ADHD had high levels of symptoms, impairment and other mental health disorders. Read more of this post
May 20, 2016Posted by on
India has a low incidence and prevalance of Alzheimer’s, which may be related to genetics or a particular intake of specific foods. Some people attribute the low incidence of Alzheimer’s to a high intake of turmeric in Asia. As turmeric contains an average of 5-10% curcumin, the daily intake of curcumin is approximated in India is thought be about 125 mg. Curcumin is an anti-inflammatory molecule in the turmeric root. Read more of this post
May 20, 2016Posted by on
The anonymous source behind the massive (11 million records) Panama Papers leak has authored an 1,800 word manifesto to explain their motives.
It begins – “income inequality is one of the defining issues of our time. It affects all of us, the world over.” The source known only as “John Doe” lashed out at the world’s governments, regulators and law firms for standing idle while the world’s rich and powerful shirk taxation behind the veil of financial secrecy. Read more of this post
May 12, 2016Posted by on
An alleged anonymous member of Congress spills the beans on corruption in a new book
“The Confessions of Congressman X,” out on May 24. “My main job is to keep my job, to get reelected,” he writes. “It takes precedence over everything. Most of my colleagues are dishonest career politicians who revel in the power and special-interest money that’s lavished upon them.” Read more of this post
May 9, 2016Posted by on
Eating seafood tainted with a class of common, long-lasting environmental contaminants can weaken the human body’s ability to defend itself against toxic substances, reports Alter-Net on a new study. California scientists, led by Amro Hamdoun of the Scripps Institution of Oceanography, tested how exposure to 10 persistent organic pollutants, or POPs, affected an important cellular protein found in most animals and plants. Read more of this post