October 14th, 2010 by Steve Novella, M.D. in Better Health Network, Health Policy, Opinion, Quackery Exposed, Research
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Any promoter of science-based medicine often faces the question: “What’s the harm?” What is the harm if people try treatment modalities that are not based upon good science, that are anecdotal, or provide only a placebo benefit? There are generally two premises to this question. The first is that most “alternative” placebo interventions are directly harmless. The second is that direct harm is the only type worth considering. Both of these premises are wrong.
The pages of Science Based Medicine (SBM) are filled with accounts of direct harm from unscientific treatments: Argyria from colloidal silver, death from chelation therapy, infection or other complications from acupuncture, burns from ear candleing, stroke from chiropractic neck manipulation — the list goes on. You can read anecdotal accounts of such harm on the website, whatstheharm.net.
Of course, as we often point out, harm and risk is only one end of the equation — one must also consider benefit. It is the risk-benefit ratio of an intervention that is important. But generally we are talking about interventions that lack any evidence for benefit, and therefore any risk of harm is arguably unacceptable. Read more »
*This blog post was originally published at Science-Based Medicine*
September 30th, 2010 by Steve Novella, M.D. in Better Health Network, Health Tips, Opinion, Quackery Exposed, Research
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If you believe everything you read on the Internet, then is seems that a chemical found in thousands of products is causing an epidemic of severe neurological and systemic diseases, like multiple sclerosis and lupus. The FDA, the companies that make the product, and the “medical industrial complex” all know about the dangers of this chemical, but are hiding the truth from the public in order to protect corporate profits and avoid the pesky paper work that would accompany the truth being revealed.
The only glimmer of hope is a dedicated band of bloggers and anonymous email chain letter authors who aren’t afraid to speak the truth. Armed with the latest anecdotal evidence, unverified speculation, and scientifically implausible claims, they have been tirelessly ranting about the evils of this chemical for years. Undeterred by the countless published studies manufactured by the food cartel that show this chemical is safe, they continue to protect the public by spreading baseless fear and hysteria.
Hopefully, you don’t believe everything you read on the Internet, and you don’t get your science news from email SPAM, where the above scenario is a common theme. While there are many manifestations of this type of urban legend, I am speaking specifically about aspartame — an artificial sweetener used since the early 1980s. The notion that aspartame is unsafe has been circulating almost since it first appeared, and like rumors and misinformation have a tendency to do, fears surrounding aspartame have taken on a life of their own. Read more »
*This blog post was originally published at Science-Based Medicine*
September 9th, 2010 by Steve Novella, M.D. in Better Health Network, Health Policy, News, Opinion, Quackery Exposed, Research
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There’s an AIDS epidemic in Africa, and efforts to fight it are hampered by the endemic social problems of that continent. Chief among them are the lack of sufficient modern health resources, the spread of destructive rumors and myths about HIV/AIDS, and even the persistence of HIV denial in Africa (although this last factor is better than in the past).
The World Health Organization (WHO) and the International HIV/AIDS Alliance are teaming up with the Traditional Health Practitioners Association of Zambia (THPAZ) to address the first problem –- the lack of health services.
Most Zambians use traditional healers for primary healthcare. The WHO has therefore decided to utilize traditional healers in the fight against AIDS. There are interesting pros and cons to this policy, but it must first be recognized that there is no ideal solution to the problem. The resources to provide optimal modern health care to treat and prevent HIV/AIDS (which would need to include a massive education program) in Zambia and the rest of Africa simply do not exist. One might argue that the world should provide those resources, but let’s put that issue aside and focus on what to do in the meantime. Read more »
*This blog post was originally published at Science-Based Medicine*
August 26th, 2010 by Steve Novella, M.D. in Better Health Network, Health Policy, News, Opinion, Research
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Peer review has been the cornerstone of quality control in academia, including science and medicine, for the past century. The process is slow and laborious, but a necessary filter in order to maintain a certain standard within the literature. Yet more and more scholars are recognizing the speed, immediacy, and openness of the Internet as a tool for exchanging ideas and information, and this is causing some to question the methods of peer review. A recent New York Times article discusses this issue.
This issue is very relevant to Science-Based Medicine (SBM) as this is in part an experiment –- an attempt to produce a high quality, editorially filtered, but not peer-reviewed, online journal. Our process here is simple. Outside submissions are reviewed by two or more editors and typically are either accepted with minor revisions or rejected. In addition we have a staff of regular contributors –- those who have a proven track record of producing high quality articles. There is no pre-publication review for their submissions, and they are able to post directly to SBM. Read more »
*This blog post was originally published at Science-Based Medicine*
August 1st, 2010 by Steve Novella, M.D. in Better Health Network, Health Tips, News, Opinion, Research
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A new study published in the American Journal of Clinical Nutrition is reporting an association with eating meat and weight gain. This is a fairly robust epidemiological study, but at the same time is a good example of how such information is poorly reported in the media, leading to public confusion.
The data is taken from the European Prospective Investigation into Cancer and Nutrition–Physical Activity, Nutrition, Alcohol, Cessation of Smoking, Eating Out of Home and Obesity (EPIC-PANACEA) project. This is a long-term epidemiological study involving hundreds of thousands of individuals, and is therefore a great source of data. We are likely to see many publications from from it. This one looked at the association of meat eating –- poultry, red meat, and processed meat -– with total weight. Read more »
*This blog post was originally published at Science-Based Medicine*
