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Tue, 19 Nov 2019
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Brain

Waves of fluid bathe the sleeping brain, perhaps to clear waste

cerebrospinal
© LAURA LEWIS
ABOVE: During sleep, waves of fluid surge into the brain and can be visualized with functional MRI. At an earlier timepoint (left), a wave of blood (red) is followed (right) by a pulse of cerebrospinal fluid (blue) into the fourth ventricle.
While humans sleep, huge waves of the cerebrospinal fluid that envelops the brain rhythmically flow in and out of the organ, according to a new study published today (October 31) in Science. The authors show that these CSF dynamics are connected to slow waves of neuronal activity, which are characteristic of deep sleep, and corresponding oscillations in the brain's blood volume. Coupled with recent indications that CSF clears waste products from the brain, the findings shed light on the benefits of sleep for the central nervous system.

The work "is exciting because it's linking neural activity to blood flow and cleaning the brain. Most neuroscientists would not say those are linked," Maiken Nedergaard, a neuroscientist at the University of Rochester Medical Center, tells The Scientist. She did not participate in the study, but work from her group has indicated that CSF helps take out the brain's garbage.

Comment: This is just the latest research confirming the cleansing that occurs in the brain during sleep. With this in mind, there is data, showing that sleeping at an incline can further aid this process, although this is not yet conclusive: Inclined Bed Therapy: Sleep on an Incline for A Better Night's Sleep

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Syringe

Molecular mimicry: New study shows how HPV vaccine can trigger 'extremely wide spectrum of autoimmune diseases'

HPV autoimmune diseases deaths

HPV vaccines have been linked to over 100,000 reported adverse events globally, including disabling autoimmune conditions and deaths.
The powerful government-pharmaceutical industry partnership that has been foisting human papillomavirus (HPV) vaccination on girls and boys around the world since 2006 now has working-age adults within its sights. Merck's Gardasil 9 received U.S. Food and Drug Administration (FDA) approval for expanded use in the 27-45 age group in late 2018, and there are signs that a campaign is afoot to achieve the same end result in other countries.
Merck ... dismissed as irrelevant the serious medical conditions that arose — within seven months — in half of all participants who received the vaccine.
HPV vaccines have been linked to over 100,000 reported adverse events globally, including disabling autoimmune conditions and deaths, but officials seem unconcerned. Merck set the tone for the truth-stretching claim that HPV vaccine risks are "negligible" when it conducted its initial clinical trials for Gardasil and dismissed as irrelevant the serious medical conditions that arose — within seven months — in half of all participants who received the vaccine.

With the accumulation of studies since those early trials, it is getting harder to deny the existence of a disabling post-HPV vaccination syndrome. Although researchers admit that they do not yet fully understand the mechanisms whereby HPV vaccines wreak their autoimmune havoc, the phenomenon of immune cross-reactivity offers one highly plausible explanation. In a new study in Pathobiology, two of the most-published researchers on this topic report on the overlap between human proteins and HPV antigens. The authors consider their results indicative of "a cross-reactivity potential capable of triggering an extremely wide and complex spectrum of autoimmune diseases."

Comment: More on this deadly vaccine:


Dollars

Saving lives or chasing dollars? US pediatricians push stomach surgeries for children to treat obesity

bariatric surgery children

Literally gutting an adult is one thing. Irreversibly surgically altering an adolescent is something else altogether. Surgeons might be fine with addressing just the quantity of food consumed, without any thought to its quality – but that hardly sounds like a general recipe for success.
A recent proposal by US pediatricians to endorse bariatric treatments for children is raising concerns that it is driven primarily by financial interests. Critics say stomach surgeries won't fix the root causes of the problem.

Almost 10 percent of children in the US aged 12-15 and 14 percent of those aged 16-19 are considered obese, according to the most recent data cited by the American Academy of Pediatrics (AAP), an Illinois-based professional association. Almost 4.5 million American adolescents are severely obese, double the number recorded in 1999, the AAP says.

To combat the problem, the AAP has published a new policy recently, recommending the use of bariatric surgeries as a safe therapy for childhood obesity. This was quickly endorsed by the American Society for Metabolic and Bariatric Surgery (ASMBS), and received favorable coverage in the mainstream media.

Comment: Lifestyle interventions don't make money for the medical establishment. These new recommendations seem like thinly veiled attempts to persuade insurance companies to fork over for surgical procedures - and the long term health of the affected children is merely an afterthought.

From Stomach Stapling Kills:
  • About 20 percent of the patients who choose gastric bypass surgery will suffer complications.
  • An estimated 1 to 4 out of every 200 patients will die from those complications.
  • Eighty-five percent of all gastric bypass surgeries are done on women, primarily during their childbearing years.
  • Tears or hernias weren't uncommon, experts say, and could happen up to five years after surgery.
See also:
The obesity epidemic and it's treatment
Five people dead after weight-loss balloon insertion, FDA investigates


Health

Why you should never buy CBD products from Amazon

fake CBD Amazon

There are no reputable companies selling CBD on Amazon!
Have you gotten into the habit of buying your nutritional supplements through Amazon, along with your other day-to-day necessities? If so, you may want to reconsider.

The e-commerce giant — which controls an estimated 40% of all U.S. e-commerce1 and handles more consumer searches than Google2has been found to sell counterfeit supplements on more than one occasion. In July 2019, Wired reported3 that Amazon had pulled fake Align probiotics by third-party sellers off its site and issued full refunds to customers.

Now, the Organic & Natural Health Association warns that Amazon may be defrauding customers twice by preventing genuine high-quality cannabidiol (CBD) products from being sold on its site, while simultaneously promoting and selling products that claim to contain CBD but don't.

Comment: There's a world of misinformation about CBD products, so as with most nutritional supplements, it's wise to learn as much as you can before jumping in:


Pills

Study links taking Tylenol in pregnancy to two-fold higher risks of having children with ADHD and autism

pregnant and pills
© Getty Images
A new study from Johns Hopkins University claims women who use acetaminophen for pain relief during pregnancy may double the risk of their children having developmental disabilities.
New research claims to link the use of acetaminophen during pregnancy to an increased risk of your child having ADHD or autism.

Researchers from Johns Hopkins University Bloomberg School of Public Health examined umbilical cord blood samples and found a higher risk of both disorders where the drug was present.

In fact, they say children exposed to the drug, also known by the brand name Tylenol, or paracetamol in Europe, in utero were twice as likely to have some type of developmental disorder - or a combination of the two - than to not have one.

Comment: While it's true the study doesn't establish a cause and effect relationship between acetaminophen and developmental disorders, any doctor who took the mantra "Do No Harm" seriously would find a safer pain reliever for their pregnant patients. If there's a chance there's a risk, that risk should be avoided. This isn't rocket science.

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Donut

Childhood obesity: Children living close to junk food outlets more likely to be overweight, says New York University study

childhood obesity fast food fries


Among New York City schoolchildren who live within a half-block of a fast food outlet, 20% are obese and 38% are overweight, shows analysis.


The closer a child lives to a fast-food restaurant or a corner store, the more likely the child will be obese or overweight. Just having fast-food outlets a block farther away, and potentially less convenient or accessible, can significantly lessen children's chances of being obese or overweight, according to the analysis by researchers at New York University (NYU) School of Medicine.

As measured in city blocks, closeness to fast and convenience food sellers can impact a student's chances of becoming obese, says the study, which concludes that for one million children attending New York City public schools, "their choice of what to eat depends on which food sources are close to where they live."

Comment: We're not that different from our hunter-gatherer ancestors - we take our available foods from our surrounding environment. If we've got highly rewarding junk food within easy reach, that's what we eat.

See also:


Bacon

Warnings about processed meat fail the test of science

bacon on board


Another rigorous analysis of the science on processed meat shows evidence is weak and uncertain


A new re-analysis of the science concerning links between processed meat and chronic disease indicates that studies showing a relationship between the two are very low quality and suffer from, as the authors put it, "serious risk of bias and imprecision."

This conclusion is unsurprising, as it follows a recent set of analyses that rocked the nutrition world. That earlier set of studies, published in Annals of Internal Medicine earlier this month, concluded that guidelines warning us to consume less red and processed meat are based on evidence with very low certainty. The researchers who performed those analyses asserted there is no way to determine, for any given individual, what the risks or benefits of eating meat might be.

Comment: By best guesses, human beings have been eating red meat since our inception. The idea that it's been bad for us all along borders on the ludicrous, regardless of what poorly conducted studies show.

See also:


Cow

Should I eat red meat? Confusing studies diminish trust in nutrition science

steaks
Another diet study, another controversy and the public is left wondering what to make of it. This time it's a series of studies in the Annals of Internal Medicine by an international group of researchers concluding people need not reduce their consumption of red and processed meat.

Over the past few years, study after study has indicated eating red and processed meat is bad for your health to the point where the World Health Organization lists red meat as a probable carcinogen and processed meat as a carcinogen.

This new study doesn't dispute the finding of a possible increased risk for heart disease, cancer and early death from eating meat. However, the panel of international nutritional scientists concluded the risk was so small and the studies of too poor quality to justify any recommendation.

Comment: See also:


Bug

Tick-borne encephalitis found in UK for first time

A handful of infected ticks are believed to have been found in England
© edelmar/Getty Images
A handful of infected ticks are believed to have been found in England.
A disease that can harm the brain, and which is spread to humans through tick bites, has been identified in the UK for the first time.

Public Health England (PHE) confirmed the presence of the tick-borne encephalitis virus in Thetford Forest, Norfolk, and on the Hampshire-Dorset border.

PHE said it believed a "handful" of infected ticks had been found in both locations, with only one highly probable case of tick-borne encephalitis so far.

The health body said the risk was very low but it was investigating how common ticks with the virus might be.

The small parasitic arachnids are becoming more common in parts of the UK, mainly due to increasing deer numbers. As well as living on deer, ticks can be found on cats, dogs and urban foxes.

Ticks can also live in undergrowth, and latch on to humans when they walk through long grass.

Cheeseburger

Dangerously anemic vegetarian eats burger, gets back to having meat and becomes a butcher

Tammi Jonas
That must have been some burger!

Tammi Jonas, a longtime vegetarian living in Victoria, Australia, had a surprising — but undeniable — craving for a hamburger while pregnant with her third child. Just one prime patty after many meat-free years.

Now, she's a professional butcher and a pig farmer.

The 49-year-old stopped eating meat when she was 19 — after reading Australian philosopher Peter Singer's book "Animal Liberation," published in 1975. She maintained her V-card successfully through two pregnancies, but while carrying her third child, she also became "dangerously anemic."

After the iron supplements failed, she pondered if protein would be the best way to get healthy for her and her baby.

"I was at work one day and just thought: 'A burger would fix this,'" Jonas told 10 Daily.

Over time, the reluctant meat-eater gradually worked her way back into an omnivorous lifestyle.