Archive for Neuroscience/Mental Health

Exercise and Memory

exercise-brainThere is no escaping the evidence that regular moderate exercise is associated with a host of medical benefits. Among those benefits are perhaps improved memory and cognition, and questionably a decreased risk of developing dementia.

The latest study to show this correlation involved younger and older adults who wore a step-monitor. The number of steps they took during the study interval was then correlated with their performance on neuropsychological testing. The researchers found that for the older adults, but not younger adults, more physical activity correlated with better overall cognitive performance, but especially for face-name recognition.

This is a small study, with 60 subjects total. Also, the study is correlational only. It is possible that healthier older adults are both more physically active and cognitively nimble, because of underlying biological fitness. More cognitively active older adults may also be more physically active – the lines of cause and effect are plausible in multiple ways. (more…)

Posted in: Clinical Trials, Neuroscience/Mental Health

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Whole Body Vibration Therapy

WBVTWhen skeptics hear the term “vibration” a red flag goes up, because that is a common term used in pseudoscientific jargon. Vibrations are often used to refer vaguely to energy or some physical or even spiritual property that cannot be detected, and is used in a hand-waving manner to explain extraordinary claims.

Vibrations, however, are also a real thing, referring to physical oscillations. Whole body vibration therapy (WBVT) refers to these legitimate physical vibrations. It is being offered as a treatment for balance, back pain, neurological disorders, and also simple fitness. Does it actually work, however, for the indications claimed?

What is WBVT?

WBVT is considered a passive exercise modality, in which something is being done to the person, rather than the person actively engaging in an activity, such as walking, weight lifting, or swimming. With WBVT users lay, sit, or stand on a platform that vibrates rapidly in one or more directions. The idea is that the rapid vibrations force the muscles of the body to contract in reaction, providing a form of exercise.


Posted in: Neuroscience/Mental Health

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Donald Trump and the dangerous vaccine politics of the 2016 Presidential race

Republican candidates Ben Carson and Donald Trump during the CNN Republican presidential debate at the Ronald Reagan Presidential Library and Museum on Wednesday, Sept. 16, 2015,

Republican candidates Ben Carson and Donald Trump during the CNN Republican presidential debate at the Ronald Reagan Presidential Library and Museum on Wednesday, Sept. 16, 2015

I’ve been writing about vaccines and the antivaccine movement since the turn of the millennium, first in discussion forums on Usenet, then, beginning in 2004, on my first blog (a.k.a. the still existing not-so-super-secret other blog), and finally right here on Science-Based Medicine (SBM) since 2008. Vaccines are one of the most important, if not the most important, topics on a blog like this because (1) arguably no medical intervention has prevented more deaths and suffering throughout history than vaccines; (2) few medical interventions are as safe and effective as vaccines; and (3) there is a vocal and sometimes effective contingent of people who don’t believe (1) and (2), blaming vaccines for all sorts of diseases and conditions to which science, despite many years of study, has failed to link them. The most prominent condition falsely linked to vaccines is, of course, autism, but over the years I’ve written about a host of others, including sudden infant death syndrome, shaken baby syndrome, autoimmune diseases, and even cancer. In a similar vein, antivaccine activists will try to claim that vaccines are loaded with “toxins” or even tainted with fetal “parts” or cells because some vaccines’ manufacturing process involves growing virus in two cell lines that were derived from aborted fetuses many decades ago. Even the Catholic Church doesn’t say that Catholics shouldn’t use these vaccines, but that doesn’t prevent some antivaccine groups from portraying vaccines as virtually being made by scientists cackling evilly as they grind up aborted fetuses to make vaccines. (I exaggerate, but not by much.)

On a strictly scientific, medical level, antivaccine claims such as the ones described above are fringe, crank viewpoints. There is no serious scientific support for any of them and lots of scientific evidence against them, particularly the most persistent myth, namely that vaccines cause autism. It also used to be the case that, politically, antivaccine views tended to be those of the fringe. Unfortunately, in the current election cycle, those fringe views seem to be coming to the fore among prominent candidates for the Republican Presidential nomination. This was most evident at the second Republican Presidential debate last week, where Donald Trump spewed antivaccine tropes and neither of the two physicians also running for the Republican nomination mounted a vigorous defense of vaccines. Even candidates who have previously issued strong statements defending vaccines (Senator Marco Rubio and Louisiana Governor Bobby Jindal) remained silent.

(Video of the exchange can be found here.)

How did we get to this point? And why is it that antivaccine views, which in the past were stereotypically associated with crunchy lefties in the mind of the public, seem now to have found another comfortable home among small government conservatives, including the man who currently appears to be the frontrunner for the Republican nomination? In the days that followed the debate, there have been many discussions of Donald Trump’s antivaccine views, but none that take the long view. All seem to flow from the idea that it’s mainly just Donald Trump and his wacky views, rather than Trump being part of a more widespread phenomenon. I’ve frequently said that antivaccine beliefs tend to be the pseudoscience that knows no political boundaries, occurring with roughly equal frequency on the left and the right. However, it’s virtually inarguable that right now, in 2015, the loudest political voices expressing antivaccine views (or at least antivaccine-sympathetic views) are in the Republican Party. Yes, Robert F. Kennedy, Jr. is back in a big way, partying like it’s 1999 with Bill Maher over thimerosal-containing vaccines and autism, but neither he nor Bill Maher holds public office or is currently running for office. The über-liberal website The Huffington Post might have been promoting antivaccine propaganda since its inception, but its writers are not running for office, either, and of late it seems to be much less antivaccine than before. (more…)

Posted in: Neuroscience/Mental Health, Politics and Regulation, Vaccines

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Seneff Claims GMOs Cause Concussions

Concussion small
You read that headline correctly.

Stephanie Seneff first came to skeptical attention when she published a study claiming that vaccines were linked to autism. She trolled through the VAERS database and, as David Gorski noted, “tortured the data until it confessed.” Last year she published a paper in which she claimed glyphosate caused autism, claims which I addressed almost a year ago. Gorski also deconstructed this paper, noting, “In fact, if you look at the slides for Seneff’s talks (e.g., this one, available at her MIT web page), you’ll find a tour de force of confusing correlation with causation…”

Seneff is a computer scientist who apparently is anti-vaccine and anti-GMO. In a stunning example of the Dunning-Kruger effect, she feels she can take her computer expertise and export it to biology. She nicely demonstrates that expertise is not so easily transferable.

From autism to concussions

Last year she also published a paper, which escaped my attention until it was recently pointed out to me, claiming that glyphosate, GMOs, and other modern lifestyle factors are responsible for the recent increase in concussions. Her co-author on the paper is Wendy Morely, who is a “Registered Holistic Nutritionist” specializing in the nutrition of concussion. Neither author has any neuroscience background.


Posted in: Genetically modified organisms (GMOs), Herbs & Supplements, Neuroscience/Mental Health

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Frontal Lobotomy: Zombies Created by One of Medicine’s Greatest Mistakes


It’s not clear who first quipped “I’d rather have a bottle in front of me than a frontal lobotomy,” but it’s not just a joke. Almost anything would be preferable to a frontal lobotomy. It was a barbarous procedure with catastrophic consequences, and yet it was once widely accepted and even earned a Portuguese doctor a Nobel Prize. In the annals of medical history, it stands out as one of medicine’s biggest mistakes and an example of how disastrously things can go wrong when a treatment is put into widespread use before it has been adequately tested.

A new book by Janet Sternburg, White Matter: A Memoir of Family and Medicine, puts a human face on the suffering of mentally ill patients and their families, and helps us understand why they agreed to lobotomies. It is the affecting story of how her relatives made the difficult but misinformed decision to lobotomize two of her mother’s five siblings, one for schizophrenia and the other for depression, and the consequences of that decision.

Posted in: Book & movie reviews, History, Neuroscience/Mental Health

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Helping the Paralyzed Walk

One of our primary goals at SBM is to advocate for high standards of science in medicine. This means that we spend a lot of our time discussing claims and practices that fall short of this standard. This is very useful – exploring exactly why a claim falls short is a great way to understand what the standard should be and why.

An unfortunate consequence of this approach, however, is that many of our articles tend to be negative. We focus on what doesn’t work, on what needs to be fixed, and on why people fail.

But there is a positive side to the story as well that we should not neglect – science is powerful and it works. That is why we are such enthusiastic advocates of science in medicine and why it is so important to get it right. We shy away from overhyping scientific advances in medicine, because the mainstream media does that so well, but every now and then it’s good to acknowledge awesome medical and scientific advances. (more…)

Posted in: Neuroscience/Mental Health

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“Hands On Learning Solutions”: Untested Solutions for Problems That May Not Even Exist

Get started...for as little as $14,000!

Get started…for as little as $14,000!

Hands On Learning Solutions, a business in Gig Harbor, Washington, evaluates and treats children for learning disabilities and claims to identify the underlying causes and help eliminate the symptoms. Much of what they do is questionable, and at least one of their methods is clearly bogus. Their program is reminiscent of the Brain Balance program that I wrote about in 2010. I’ll describe one child’s encounter with Hands On Learning Solutions and let you decide for yourself whether it sounds like a legitimate, helpful service.

Billy (not his real name) is an 11-year-old boy who is in the fifth grade at a Catholic school. He didn’t learn to talk until age 3, but he got speech therapy and is currently doing well in school, with a GPA of 86%. On his last report card, the section on “Successful Learner” rated him above average on working cooperatively with others, and satisfactory in all other categories, such as organizational skills, using time well, listening attentively, following directions, and completing work on time. His mother took him to Hands On Learning Solutions on the recommendation of a friend. On the intake questionnaire she expressed concerns about his written/oral expression, organization, study skills, attention focus, and motivation/behavior. She did not check the boxes for concerns about reading, spelling, comprehension, letter reversals, graphomotor skills, math, memory, poor grades, or slow work. (more…)

Posted in: Diagnostic tests & procedures, Neuroscience/Mental Health

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The PIED Piper of Nootropics

4016241122_a5b15e1356_z 75Nootropics are an emerging class of drugs that are designed to enhance cognitive function. They are part of a broader category of drugs known as performance and image enhancing drugs (PIED) which are used for enhancement of memory and cognition, sexual performance, athletic performance or musculature (also called “lifestyle” drugs).

It will probably come as no surprise to regular readers of SBM that nootropics and PIED are being abused and hyped without adequate evidence. One of the primary problems is that they are sold as supplements or as drugs, often over the internet without adequate regulation. One simple fix is to properly classify these drugs as drugs, and to properly regulate them as drugs.

Many of the cognition-enhancing “supplements” on the market make all the usual claims about “natural” enhancement – meanwhile they predictably contain just vitamins, herbs which have not been shown effective, perhaps nootropics (see below), and often a stimulant, like caffeine. The only drug in the mix which is likely to have a noticeable effect by the user is the stimulant.


Posted in: Neuroscience/Mental Health

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A journey to alternative and integrative medicine apostasy

Julian the Apostate presiding at a conference of sectarians, by Edward Armitage, 1875

Julian the Apostate presiding at a conference of sectarians, by Edward Armitage, 1875

I’ve been blogging for over a decade now, a fact that I find really hard to believe looking back on it right now. I’ve told the story before, but it’s worth briefly recounting again because doing so will explain why the story I’m about to discuss caught my attention. My “gateway drug,” if you will, into skepticism was discovering Holocaust denial in the late 1990s on Usenet, a vast and sprawling conglomeration of thousands of discussion forums that began to fade away at the turn of the century with the rise of web-based forums and Google providing an interface to it to make it Google Groups. The forum where I first discovered Holocaust denial and learned to combat it, alt.revisionism, still exists, but long ago degenerated into a cesspool of racism, spam, and trolling. A couple of years later, around 2000 or so, I discovered quackery and the antivaccine movement, thanks to a Usenet newsgroup known as, which is where I honed my early skills applying science to medical claims. It’s also where I first encountered Peter Moran, a regular commenter here who greatly inspired me back then with his full-throated criticism of cancer quackery and his website that taught me reasons why cancer quackery could appear to work even when it did nothing to impact the progression of the cancer.

In December 2004, intrigued by all the news stories about blogging and having discovered a number of good blogs, I decided on one dark, gray Saturday afternoon to dip my toe in the blogosphere. On the spur of the moment I created the first iteration of my not-so-super-secret other blog on—what else?—Blogger. Much to my own amazement, over the course of a year I got my little hobby noticed, to the point where I was invited to join a blog collective; by late 2007 I had become prominent enough to be invited by Steve Novella to join this very blog at its founding, where I have remained for seven years, with no plans to move on any time soon. During my early days, though, there was one person who also inspired me, helping me to learn about the pseudoscience that undergirds the antivaccine movement and, in particular, the quackery making up what is known these days as the “autism biomed” movement. His name is James Laidler, and he was one of the ones who introduced me to this topic which I’ve written about many times both at my not-so-super-secret other blog and, of course, right here on SBM. In doing so, over the years I’ve catalogued why “autism biomed” seems compelling to many parents with children with autism, how antivaccine groups use fake “medical conferences” to sell autism biomed by giving a patina of medical respectability to rank quackery like bleach enemas, and providing a place where those selling unscientific treatments can find willing customers and where disreputable discredited “scientists” like Andrew Wakefield and Mark Geier can find adoring fans who believe their quackery.

I bring this up because last week WIRED published an excellent article about Jim Laidler, “An Alternative-Medicine Believer’s Journey Back to Science.” Appropriately enough, it’s by Alan Levinovitz, an assistant professor of religion at James Madison University. I say “appropriately enough” because, as has been noted here on a number of occasions, there are many religion-like aspects to alternative medicine in general but to the autism biomed movement in particular. Indeed, the two are often tied together, with the motivation for some alt-med being explicitly religious and belief in alt-med sharing some major characteristics with religion, particularly belief in miracles against evidence, charismatic leaders (like Andrew Wakefield) who can do no wrong, and mutually-supportive communities of believers who reinforce each others’ beliefs and ward off skepticism. Add to that the magical thinking, and it’s not for nothing that I’ve referred to the central dogma of alternative medicine as being that wishing makes it so. Indeed, it’s for good reason that I frequently point out that most “energy medicine” (particularly reiki) is basically faith healing that substitutes Eastern mysticism for Judeo-Christian religious beliefs.

In Levinovitz’s profile of Jim Laidler, we see a lot of this, and I learned some details that I didn’t know about Laidler before. Levinovitz also grasps the religion-like nature of alt-med by starting the article bluntly saying:

Jim and Louise Laidler lost their faith on a trip to Disneyland in 2002, while having breakfast in Goofy’s Kitchen.


Posted in: Health Fraud, Neuroscience/Mental Health, Vaccines

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Stem cells versus Gordie Howe’s stroke, part 3

Gordie Howe in his Red Wings days.

Gordie Howe in his Red Wings days.

Here I am in Philadelphia attending the 2015 American Association for Cancer Research (AACR) meeting to imbibe the latest basic and translational science about oncology. So what am I doing in my non-conference time? I’m holed up in my hotel room near Rittenhouse Square writing a DoD Grant and this post. Fortunately, I am nearly done with the grant, with nothing I can do until I receive one last letter of support from a person who, as much as he’s my bud, is incredibly annoying and always makes me sit on pins and needles waiting for his letter of support. (Those of you who’ve applied for a lot of grants know what I mean.) Then tomorrow I will have to assemble the PDF package to get to my grants office two days before the deadline, which is pushing it to make sure they get it uploaded to in time. Fun times.

With the Stanley Cup playoffs just getting underway (complete with the ugly faux “Stanley Cup” made out of garbage cans our next door neighbor’s son puts on his lawn every year, bathed in red light for the Red Wings), it’s also the perfect time to revisit a story I’ve written about a couple of times before right here on this very blog. I’m referring (this time) to the story of hockey legend Gordie Howe and news stories of his “miraculous” recovery from a serious stroke suffered back in October due to treatment at a stem cell clinic in Tijuana back in December. Of course, when I looked into it, there were a lot of holes in the story and clearly a lot of hype on the part of several parties: Howe’s son Murray Howe, whose love for his father apparently blinded him to some rather obvious issues with the care that his father was receiving and whether it was responsible for his recovery; Stemedica, the American stem cell company based in San Diego that sells its stem cells to a dubious Mexican stem cell company, Novastem, for use outside its U.S. clinical trials; and, of course, the credulous sports media, led by that most credulous of the credulous (with respect to Gordie Howe), Keith Olbermann, who was none too pleased with a certain not-so-pseudonymous “friend” of SBM and completely embarrassed himself in the process of attacking anyone who questioned whether stem cells caused Howe’s recovery. The whole story did have one salutary effect, though. It introduced me to a real stem cell scientist, Paul Knoepfler, who did a guest post for us.

It’s been a couple of months since I last paid attention to what was going on with Gordie Howe’s recovery. Fortunately, our very own Scott Gavura tweaked me by sending me a story by Avis Favaro and Elizabeth St. Philip that appeared over the weekend in the Toronto Star, entitled “A closer look at the startling recovery of Gordie Howe.” Accompanying the story is a broadcast on CTV’s W5 entitled “Gordie’s Comeback”. (See part 1, part 2, part 3.) Also accompanying all of this is a press release discussing how a Canadian stem cell researcher visited Novastem and left unimpressed.

Posted in: Clinical Trials, Neuroscience/Mental Health, Science and the Media

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