Taghealth

The Risks and Rewards of Yoga

William J. Broad, author of The Science of Yoga: The Risks and the Rewards, writes for the New York Times:

Hatha originated as a way to speed the Tantric agenda. It used poses, deep breathing and stimulating acts — including intercourse — to hasten rapturous bliss. In time, Tantra and Hatha developed bad reputations. The main charge was that practitioners indulged in sexual debauchery under the pretext of spirituality.

Early in the 20th century, the founders of modern yoga worked hard to remove the Tantric stain. They devised a sanitized discipline that played down the old eroticism for a new emphasis on health and fitness.

B. K. S. Iyengar, the author of “Light on Yoga,” published in 1965, exemplified the change. His book made no mention of Hatha’s Tantric roots and praised the discipline as a panacea that could cure nearly 100 ailments and diseases. And so modern practitioners have embraced a whitewashed simulacrum of Hatha.

New York Times: Yoga and Sex Scandals: No Surprise Here

(via AshleyB)

Broad goes on to discuss some of the studies linking yoga to sexual stimulation and speculates about how that could relate to some of the various guru sex scandals that have plagued yogis for decades.

Broad also recently wrote for the times How Yoga Can Wreck Your Body, an extremely interesting piece that’s made frustrating by its lack of comparisons between the number of injuries in yoga and the number of injuries in other types of strength training. But here’s a taste:

Black has come to believe that “the vast majority of people” should give up yoga altogether. It’s simply too likely to cause harm.

Not just students but celebrated teachers too, Black said, injure themselves in droves because most have underlying physical weaknesses or problems that make serious injury all but inevitable. Instead of doing yoga, “they need to be doing a specific range of motions for articulation, for organ condition,” he said, to strengthen weak parts of the body. “Yoga is for people in good physical condition. Or it can be used therapeutically. It’s controversial to say, but it really shouldn’t be used for a general class.”

(via Dangerous Meme)

See also:

Calling Bullshit on Penn and Teller’s yoga episode

Stripping the Gurus

Guruphiliac

The Great Adderall Shortage

Kelly Bourdet writes for Vice Motherboard:

To prevent hoarding of materials and their potential for theft and illicit use, the Drug Enforcement Agency sets quotas for the chemical precursors to drugs like Adderall. The DEA projects the need for amphetamine salts, then produces and distributes the materials to pharmaceutical companies so that they can produce their drugs. But with the number of prescriptions for Adderall jumping 13 percent in the past year, pharmaceutical companies claim that the quotas are no longer sufficient for supplying Americans with their Adderall.

I hadn’t realized that it wasn’t known how these drugs work:

Despite the millions of prescriptions written each year for ADHD, the scientific community isn’t entirely in agreement on how these drugs actually work. Ritalin increases focus and energy through inhibiting the re-uptake of both dopamine and norepinephrine in the brain. These neurotransmitters then remain in the synapse longer, and their effects are felt in the form of heightened focus and awareness. Adderall, however, works via a slightly different mechanism. While it’s postulated that Adderall also inhibits the re-uptake of these same neurotransmitters, amphetamines also trigger the release of dopamine. This affects the brain’s reward mechanisms, so it’s not only easier to focus on mundane or repetitive tasks, it can also feel positively delightful to do so.

Motherboard: Anatomy of the Great Adderall Drought

The article also goes into some of the shadier aspects of the shortage – such as Shire’s missed shipments to competitors and the creation of its newer, more expensive alternative Vyvanse.

Why so much demand? From a recent Portland Tribune article:

Ritalin and Adderol are commonly prescribed for attention deficit disorder. But a recent study showed that as many as one in four students at an Ivy League university were using one of the two not because they had a diagnosis, but because it helped them study.

And it’s not just the students:

“I’ve had several colleagues say to me, ‘You’re a stupid guy if you’re not using Ritalin to stay up all night.’ You’re much more productive, your career takes off much faster,” says Paul Zak, director of the Center for Neuroeconomic Studies at Claremont Graduate University in California.

Zak isn’t sure that those Ivy League students and his college professor colleagues are doing anything wrong.

“I’m very conflicted,” he says.

And, on the subject Adderall, here’s an interesting paper: When we enhance cognition with Adderall, do we sacrifice creativity? A preliminary study. The study concluded that Adderall might actually improve creativity for those who score poorly on tests of creativity (for some background on creativity testing see here).

How and Why Exercise Boosts Your Brain. Plus: How Little Exercise Can You Get By With?

The New York Times on how exercise raises the level of glycogen available to the brain:

After the single session on the treadmill, the animals were allowed to rest and feed, and then their brain glycogen levels were studied. The food, it appeared, had gone directly to their heads; their brain levels of glycogen not only had been restored to what they had been before the workout, but had soared past that point, increasing by as much as a 60 percent in the frontal cortex and hippocampus and slightly less in other parts of the brain. The astrocytes had “overcompensated,” resulting in a kind of brain carbo-loading.

The levels, however, had dropped back to normal within about 24 hours.

That was not the case, though, if the animals continued to exercise. In those rats that ran for four weeks, the “supercompensation” became the new normal, with their baseline levels of glycogen showing substantial increases compared with the sedentary animals. The increases were especially notable in, again, those portions of the brain critical to learning and memory formation — the cortex and the hippocampus.

New York Times: How Exercise Fuels the Brain

Also:

While many of us wonder just how much exercise we really need in order to gain health and fitness, a group of scientists in Canada are turning that issue on its head and asking, how little exercise do we need?

The emerging and engaging answer appears to be, a lot less than most of us think — provided we’re willing to work a bit. […]

For years, the American Heart Association and other organizations have recommended that people complete 30 minutes or more of continuous, moderate-intensity exercise, such as a brisk walk, five times a week, for overall good health.

But millions of Americans don’t engage in that much moderate exercise, if they complete any at all. Asked why, a majority of respondents, in survey after survey, say, “I don’t have time.”

Intervals, however, require little time. They are, by definition, short. But whether most people can tolerate intervals, and whether, in turn, intervals provide the same health and fitness benefits as longer, more moderate endurance exercise are issues that haven’t been much investigated.

New York Times: How 1-Minute Intervals Can Improve Your Health

(via socialphysicist)

Interview with a Designer Drug Designer

drug structures

Last year Vice interviewed an anonymous chemist/ neuropharmacologist who invented a few new designer drugs similar to ketamine or PCP, most notably methoxetamine which is becoming increasingly popular. Sort of the Alexander Shulgin of disassociatives.

On the medicinal uses of ketamine:

I discovered a long time ago that ketamine and cannabinoids helped my phantom hand. I’m quite convinced these classes work by distorting body image so severely that you phase out triggers for the pain. I have experienced profound proprioceptive distortions after intramuscular PCP injection, as if my whole body were a proportional model of the sensory homunculus. But in a sense, what I feel is not hallucination or a distortion, I actually find dissociatives corrective, that is, they make the phantom disappear. This is not just an idiosyncratic response on my part; there are at least three articles published on the effectiveness of ketamine in treating phantom-limb pain. It’s dished out by British pain-management clinics for just that purpose in the form of a nauseatingly artificial lemon-flavored linctus. Needless to say, the whole lot of it gets squirted up the arse to bypass my taste buds, but even this has its drawbacks… like sticky, sugary bum cheeks!

On being hospitalized after going into a catatonic state while testing 3-MeO-PCP:

And what happened when you were released?

That was the final straw for my partner, and she said she would not sit idly by and watch me self-destruct. When I came home she was gone, Nesbitt was still dead, and all of the arylcyclohexylamines I had been researching had been confiscated and destroyed.

That’s really terrible. Alexander Shulgin always felt that the dissociatives had no use as psychotherapeutic drugs, and John Lilly found that even when you think the effects of ketamine have worn off there is a lingering undercurrent of dissociation that prevents you from reaching baseline.

And despite the fact that I knew all of that, I still ignored what should have been indicators that I was slipping. The arylcyclohexylamines light up too many of the reward systems in the brain, with the dopamine-reuptake inhibition, the NMDA antagonism, and the µ-opioid affinity. They lend themselves to abuse and escape to fantasy. I used to find myself raving about chemicals I had only tried once or twice, saying they were Huxley’s soma or moksha, or Polidamma’s Nepenthe. I’ve come to realize that dissociatives have a really dark side to them that classic serotonergic psychedelics don’t.

Vice: Interview with a Ketamine Chemist

See also:

Vice’s interview with Shulgin.

This interview with former Process Church of the Final Judgement member Timothy Wyllie where he talks about PCP.

The Vegan Body Building Movement

vegan body builder

“Is it possible to be a good bodybuilder and be a vegan? Yes,” said Jose Antonio, the chief executive of the International Society of Sports Nutrition. “But is it ideal? No.”

Vegan bodybuilders may face challenges getting sufficient amino acids, found in meats, Antonio said, adding that although protein can be found in vegetables and nuts, they must be consumed in greater quantities to get the same amount as their counterparts in meat. “The amount of rice and beans you need to eat would fill up a Mexican restaurant,” he said.

Other nutritionists and bodybuilders have argued that a disciplined vegan diet, consisting of things like hemp-based protein supplements, peanut butter, nuts, vegetables and legumes, can yield similar, if not better, results than a meat- or dairy-filled diet. Carefully monitored, vegans can get the same amount of protein with less fat or toxins, they argue. (For a midafternoon snack, Sitko sometimes eats 10 bananas.)

New York Times: Sculptured by Weights and a Strict Vegan Diet

(via Roope Mokka)

The Afghanistan War’s Signature Wound

The Great War had shell shock. World War II had facial burns. Vietnam had amputations. Iraq, traumatic brain injuries. What’s Afghanistan’s “signature wound”? Penis mutilation as a result of homemade bombs that are detonated underfoot, injuring soldiers feet, legs and genitals. Their compensation? Fifty thousand dollars.

Men’s Health is selling a Kindle single on the subject. I read the feature in the print magazine, and it’s well worth your time and money.

Here’s a sidebar specifically on fertility: War is Hell (On Fertility)

Wired Interviews Vegan Black Metal Chef

Wired did an interview with the famous Vegan Black Metal Chef. I posted his first video here:

Wired.com: Are you also in a band?

Vegan Black Metal Chef: Yes, my main project is called Forever Dawn. You can hear some old, shit recordings on the MySpace.

I would describe it as industrial symphonic black metal. I play all of the instruments in this and have a live keyboardist and bassist to play shows. I like the songs a lot, but the recordings were done when I had no idea what I was doing.

I am currently recording a new album for this project and putting together a new stage show. I also play keys in an eclectic metal band called Fields of Glass. I was not on the first album, though.

Wired.com: Do you perform in makeup and outfits similar to what you wear as Vegan Black Metal Chef?

Vegan Black Metal Chef: Yes, that is my Fields of Glass band attire.

Wired: Vegan Black Metal Chef Is Still Cooking With Hellfire

Here’s the most recent two episodes, one on quick and easy meals and the other on vegan sushi:

Reverse Placebo: People Wrongly Diagnosed with Alzheimer’s Go Senile

Psychologists in the Netherlands have documented the case of a 58-year-old woman who was misdiagnosed with Alzheimer’s Disease. Her condition deteriorated to the point where she became permanently confused, and at one point suicidal — before another doctor realized the diagnosis was incorrect.

What happens to people who are wrongly diagnosed with having cognitive difficulties? It turns out that even if your brain is perfectly healthy, you’ll start having more problems with concentration.

io9: What happens when you’re wrongly diagnosed with Alzheimer’s Disease

(Thanks Bill!)

See also: The placebo effect is real apparently even when you know it’s a placebo

Modified MDMA (Ecstasy) May Be the Key to Curing Certain Types of Cancer

Ecstasy is known to kill some cancer cells, but scientists have increased its effectiveness 100-fold, they said in Investigational New Drugs journal.

Their early study showed all leukaemia, lymphoma and myeloma cells could be killed in a test tube, but any treatment would be a decade away. […]

In 2006, a research team at the University of Birmingham showed that ecstasy and anti-depressants such as Prozac had the potential to stop cancers growing.

The problem was that it needed doses so high they would have been fatal if given to people.

The researchers, in collaboration with the University of Western Australia, have chemically re-engineered ecstasy by taking some atoms away and putting new ones in their place.

BBC: Modified ecstasy ‘attacks blood cancers’

Direct-To-Consumer Genetic Tests May Wildly Overestimate Your Risk of Disease

Direct-to-consumer (DTC) genetic tests give inaccurate predictions of disease risks and many European geneticists believe that some of them should be banned, the annual conference of the European Society of Human Genetics heard May 31.

Although the predictive ability of the DTC tests in the study was moderate for all diseases, both companies assigned an increased risk to a substantial part of the group. Yet the risk of disease in this group was often not substantially higher than the risk in the rest of the population studied. For AMD, the disease with the highest predictive ability, both companies assumed that the risk in the population was around 8%. Of all subjects designated as having an increased risk, 16% using the 23andMe risk estimations and 19% using deCODEme’s estimations would develop AMD, compared to the 4% found in the rest of the population studied. […]

“deCODEme predicted risks higher than 100% for five out of the eight diseases,” Ms Kalf will say. “This in itself should be enough to raise considerable concern about the accuracy of these predictions — a risk can never be higher than 100%. In the case of AMD one in every 200 individuals in the group would have received a predicted risk of higher than 100%, suggesting that they would definitely develop the disease.”

Science Daily: Direct-To-Consumer Genetic Tests Neither Accurate in Their Predictions nor Beneficial to Individuals, Study Suggests

(via Edward Borasky)

Oh well, at least we’ll always have palm reading.

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