Tag: leads (page 1 of 5)

Gluten-Free: “Fad” or Not? Studies Suggest Most Gluten Sensitivity Is Imagined

Makia Freeman, ContributorGluten-free food is now very common and available, whether you are in a restaurant, cafe or grocery store. Although there are definitely people who suffer from celiac disease and other diseases triggered by gluten, the entire gluten-free movement has left many health experts and nutritionalists scratching their heads in bewilderment. Since when did large chunks of populations used to eating bread, pasta and other wheat products suddenly suffer from [...]

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5 Reasons The Most Dangerous Drug Is Not Illegal

Marco Torres, Prevent DiseaseHundreds of millions of people indulge in one of the most dangerous drugs which is sold right over the counter. When it comes to harm done to other people and the users themselves, not heroin, crack cocaine, methamphetamines, marijuana or even tobacco come close to the health and safety hazards caused by this one depressant.Drug harms fall into two broad categories: those that affect you, and those that affect others. The personal ones include death, heal [...]

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5 Cancer Myths Busted

Dr. E. Dahl, Prevent DiseaseCancer statistics are on the rise, and the growing numbers have moved the disease to a priority issue for the global community. AsThe Lancet reports, cancer deaths have increased 46% between 1990 and 2013. On Jan 1, 2016, new international development priorities called Sustainable Development Goals, will focus on decreasing premature deaths from non-communicable diseases by 2025.PreventDisease recently reported 5 cancer facts the cancer industry [...]

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Chronic Illness Begins With Breakdown In Your Gut

Dr. Ben Kim, GuestGood overall health begins with a healthy gut. Chronic illness begins with breakdown in the gut.This is where I typically start with clients looking to address any health challenge.If you’re looking for lasting improvement in any area of your health, it’s best not to think of your body parts as being independent compartments. Every cell communicates with every other cell, not always directly, but via the fluids, hormones, and neurotransmitters that trave [...]

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Dying With Dignity

 Excerpt from huffingtonpost.comBy Debbie FinkCo-authored by Karen Bloch MorseThere is nothing easy or natural about watching your 41-year-old friend (of 41 years) -- who, by all counts, looks healthy -- ...

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Archaeologists Believe they have Found the Ruins of a Legendary Monastery



Excerpt from icelandreview.com

It is believed the remains of the much-searched-for Þykkvabær cloister may have been found. Icelandic and British archaeologists saw the remains of a very large building yesterday, using ultrasound techniques, at Álftaver in South Iceland.

The discovery came as a complete surprise, as it was not thought the remains of the cloister were in that area.

“I think we’ve just hit the jackpot, because I think we’ve discovered the remains of Þykkvabæjarklaustur. It came as a complete surprise, you can say that much. The remains are not on the site it was assumed the cloisters stood,” archaeology professor Steinunn Kristjánsdóttir told Stöð 2 television.

Þykkvabæjarklaustur, east of Mýrdalur, was a monastery of Augustine monks and its location has been lost to archaeologists until now. This week, ten Icelandic and British archaeologists have been searching for the remains with high tech instruments. The remains of an unusually big building were discovered under the ground yesterday, measuring around 40 x 45 meters.

“It is very big compared to the buildings of the time – as it is from the Middle Ages – and the footprint is around 1,500 square meters,” Steinunn says.

The cloister was in use from 1168 until 1550. Until recently it was assumed that Þykkvabæjarklaustur must have stood near the present-day Þykkvabæjarkirkja church, but searches revealed nothing; and this leads Steinunn to strongly believe yesterday’s find to be the lost cloisters. It is still possible, however, the remains are of a cow shed—but in that case it would be the cloister’s own cow shed and still therefore relevant.

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The Class-Domination Theory of Power

by G. William DomhoffNOTE: WhoRulesAmerica.net is largely based on my book,Who Rules America?, first published in 1967 and now in its7th edition. This on-line document is presented as a summary of some of the main ideas in that book.Who has predominant power in the United States? The short answer, from 1776 to the present, is: Those who have the money -- or more specifically, who own income-producing land and businesses -- have the power. George Washington was one of the biggest landowner [...]

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Flawed Medical Research May Be Ruining Your Health & Your Life

Robert Oliva, Collective-EvolutionThere is a cancer eating at the core of medical research.You’ve most likely heard of medical reports touting the effectiveness of a diet plan, a new drug, a supplement, or medical procedure. You may have even decided on a course of action based on these findings, only to find out later that they have been refuted by new studies.Strikingly, the odds are that the studies that influenced your decision, and possibly the decision of your doctor, wer [...]

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The Secret To A Meaningful Life In Just 7 ‘Magic’ Words

Excerpt from huffingtonpost.com Sometimes, it's the most fantastical, fictional characters that do the best job of teaching us about reality.New York Times bestselling author T.A. Barron spent decades creating the magical image of Merlin the wiza...

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8 Myths About Emotions That Are Holding Us Back

Excerpt from huffingtonpost.comAs a society, we don't talk much about emotions. Conversations tend to focus more on what we're doing or what we're thinking. In fact, most people find it easier to start sentences with, "I think..." instead of "I feel...

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Cosmic tsunamis can regenerate ‘dead’ galaxies






Excerpt from thespacereporter.com



Astronomers have recently discovered that giant cosmic shockwaves emanating from colliding galaxy clusters are capable of jumpstarting new star generation.

According to a Nature World News report, galaxies are often clustered into groups containing “red and dead” galaxies that stopped forming new stars long ago. Scientists now believe that these “dead” galaxies can be brought back to “life” by colossal cosmic tsunamis.

To uncover this phenomenon, an international team of researchers observed how galaxy clusters can absorb smaller clusters much as a growing city absorbs its suburbs. When galaxy clusters collide during this absorption process, a huge shockwave of energy is created. This shockwave can re-energize the star formation process, causing dormant galaxies to begin producing new stars again.

Scientists from the University of Lisbon and Leiden Observatory came to this conclusion after studying the merging galaxy cluster officially known as CIZA J2242.8+5301 and affectionately known as the “Sausage.” The Sausage cluster, located 2.3 billion light-years away, showed evidence of its dormant galaxies coming to life with a new round of star formation.

“We assumed that the galaxies would be on the sidelines for this act, but it turns out they have a leading role. The comatose galaxies in the Sausage cluster are coming back to life, with stars forming at a tremendous rate. When we first saw this in the data, we simply couldn’t believe what it was telling us,” Andra Stroe of Liden Observatory said in a statement.The researchers are observing an event that actually unfolded one billion years ago, when the 6-million-mph shockwave spread out from the collision of the clusters. The team believes that the new star formation was instigated by the shockwave’s affect on galactic gas.

“Much like a teaspoon stirring a mug of coffee, the shocks lead to turbulence in the galactic gas. These then trigger an avalanche-like collapse, which eventually leads to the formation of very dense, cold gas clouds, which are vital for the formation of new stars,” Stroe said.

Despite the vigorous production of new stars in this instance, the team believes that, after the initial effects of the tsunami take place, the galaxies fall to an even deeper state of dormancy than before.

David Sobral of the University of Lisbon explains that “star formation at this rate leads to a lot of massive, short-lived stars coming into being, which explode as supernovae a few million years later. The explosions drive huge amounts of gas out of the galaxies and with most of the rest consumed in star formation, the galaxies soon run out of fuel. If you wait long enough, the cluster mergers make the galaxies even more red and dead – they slip back into a coma and have little prospect of a second resurrection.”

The study was published in the journal Monthly Notices of the Royal Astronomical Society.

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NASA video illustrates ‘X-ray wind’ blasting from a black hole

This artist's illustration shows interstellar gas, the raw material of star formation, being blown away.Excerpt from cnet.com It takes a mighty wind to keep stars from forming. Researchers have found one in a galaxy far, far away -- and NASA mad...

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What happens to your body when you give up sugar?





Excerpt from independent.co.uk
By Jordan Gaines Lewis


In neuroscience, food is something we call a “natural reward.” In order for us to survive as a species, things like eating, having sex and nurturing others must be pleasurable to the brain so that these behaviours are reinforced and repeated.
Evolution has resulted in the mesolimbic pathway, a brain system that deciphers these natural rewards for us. When we do something pleasurable, a bundle of neurons called the ventral tegmental area uses the neurotransmitter dopamine to signal to a part of the brain called the nucleus accumbens. The connection between the nucleus accumbens and our prefrontal cortex dictates our motor movement, such as deciding whether or not to taking another bite of that delicious chocolate cake. The prefrontal cortex also activates hormones that tell our body: “Hey, this cake is really good. And I’m going to remember that for the future.”
Not all foods are equally rewarding, of course. Most of us prefer sweets over sour and bitter foods because, evolutionarily, our mesolimbic pathway reinforces that sweet things provide a healthy source of carbohydrates for our bodies. When our ancestors went scavenging for berries, for example, sour meant “not yet ripe,” while bitter meant “alert – poison!”
Fruit is one thing, but modern diets have taken on a life of their own. A decade ago, it was estimated that the average American consumed 22 teaspoons of added sugar per day, amounting to an extra 350 calories; it may well have risen since then. A few months ago, one expert suggested that the average Briton consumes 238 teaspoons of sugar each week.
Today, with convenience more important than ever in our food selections, it’s almost impossible to come across processed and prepared foods that don’t have added sugars for flavour, preservation, or both.
These added sugars are sneaky – and unbeknown to many of us, we’ve become hooked. In ways that drugs of abuse – such as nicotine, cocaine and heroin – hijack the brain’s reward pathway and make users dependent, increasing neuro-chemical and behavioural evidence suggests that sugar is addictive in the same way, too.

Sugar addiction is real

Anyone who knows me also knows that I have a huge sweet tooth. I always have. My friend and fellow graduate student Andrew is equally afflicted, and living in Hershey, Pennsylvania – the “Chocolate Capital of the World” – doesn’t help either of us. But Andrew is braver than I am. Last year, he gave up sweets for Lent. “The first few days are a little rough,” Andrew told me. “It almost feels like you’re detoxing from drugs. I found myself eating a lot of carbs to compensate for the lack of sugar.”
There are four major components of addiction: bingeing, withdrawal, craving, and cross-sensitisation (the notion that one addictive substance predisposes someone to becoming addicted to another). All of these components have been observed in animal models of addiction – for sugar, as well as drugs of abuse.
A typical experiment goes like this: rats are deprived of food for 12 hours each day, then given 12 hours of access to a sugary solution and regular chow. After a month of following this daily pattern, rats display behaviours similar to those on drugs of abuse. They’ll binge on the sugar solution in a short period of time, much more than their regular food. They also show signs of anxiety and depression during the food deprivation period. Many sugar-treated rats who are later exposed to drugs, such as cocaine and opiates, demonstrate dependent behaviours towards the drugs compared to rats who did not consume sugar beforehand.
Like drugs, sugar spikes dopamine release in the nucleus accumbens. Over the long term, regular sugar consumption actually changes the gene expression and availability of dopamine receptors in both the midbrain and frontal cortex. Specifically, sugar increases the concentration of a type of excitatory receptor called D1, but decreases another receptor type called D2, which is inhibitory. Regular sugar consumption also inhibits the action of the dopamine transporter, a protein which pumps dopamine out of the synapse and back into the neuron after firing.
In short, this means that repeated access to sugar over time leads to prolonged dopamine signalling, greater excitation of the brain’s reward pathways and a need for even more sugar to activate all of the midbrain dopamine receptors like before. The brain becomes tolerant to sugar – and more is needed to attain the same “sugar high.”

Sugar withdrawal is also real

Although these studies were conducted in rodents, it’s not far-fetched to say that the same primitive processes are occurring in the human brain, too. “The cravings never stopped, [but that was] probably psychological,” Andrew told me. “But it got easier after the first week or so.”
In a 2002 study by Carlo Colantuoni and colleagues of Princeton University, rats who had undergone a typical sugar dependence protocol then underwent “sugar withdrawal.” This was facilitated by either food deprivation or treatment with naloxone, a drug used for treating opiate addiction which binds to receptors in the brain’s reward system. Both withdrawal methods led to physical problems, including teeth chattering, paw tremors, and head shaking. Naloxone treatment also appeared to make the rats more anxious, as they spent less time on an elevated apparatus that lacked walls on either side.
Similar withdrawal experiments by others also report behaviour similar to depression in tasks such as the forced swim test. Rats in sugar withdrawal are more likely to show passive behaviours (like floating) than active behaviours (like trying to escape) when placed in water, suggesting feelings of helplessness.
A new study published by Victor Mangabeira and colleagues in this month’s Physiology & Behavior reports that sugar withdrawal is also linked to impulsive behaviour. Initially, rats were trained to receive water by pushing a lever. After training, the animals returned to their home cages and had access to a sugar solution and water, or just water alone. After 30 days, when rats were again given the opportunity to press a lever for water, those who had become dependent on sugar pressed the lever significantly more times than control animals, suggesting impulsive behaviour.
These are extreme experiments, of course. We humans aren’t depriving ourselves of food for 12 hours and then allowing ourselves to binge on soda and doughnuts at the end of the day. But these rodent studies certainly give us insight into the neuro-chemical underpinnings of sugar dependence, withdrawal, and behaviour.
Through decades of diet programmes and best-selling books, we’ve toyed with the notion of “sugar addiction” for a long time. There are accounts of those in “sugar withdrawal” describing food cravings, which can trigger relapse and impulsive eating. There are also countless articles and books about the boundless energy and new-found happiness in those who have sworn off sugar for good. But despite the ubiquity of sugar in our diets, the notion of sugar addiction is still a rather taboo topic.
Are you still motivated to give up sugar? You might wonder how long it will take until you’re free of cravings and side-effects, but there’s no answer – everyone is different and no human studies have been done on this. But after 40 days, it’s clear that Andrew had overcome the worst, likely even reversing some of his altered dopamine signalling. “I remember eating my first sweet and thinking it was too sweet,” he said. “I had to rebuild my tolerance.”
And as regulars of a local bakery in Hershey – I can assure you, readers, that he has done just that.
Jordan Gaines Lewis is a Neuroscience Doctoral Candidate at Penn State College of Medicine

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