Another Anti-GMO Paper Retracted
Retraction Watch is a great website. As the name implies, it focuses on a key aspect of quality control in science, the retraction of scientific papers that have already passed peer-review and were published when serious concerns about those papers come to light. Retracting published papers is similar to phase IV clinical trials – tracking side effects of drugs that have already...
P Value Under Fire
The greatest strength of science is that it is self-critical. Scientists are not only critical of specific claims and the evidence for those claims, but they are critical of the process of science itself. That criticism is constructive – it is designed to make the process better, more efficient, and more reliable. One aspect of the process of science that has received...
Bad Reporting about Uploading Memories
The Mirror declares, ‘Scientists develop Matrix-style technique of ‘feeding’ information directly into your brain.’ Discovery News went with, “Novices ‘Download’ Pilots’ Brainwaves, Learn To Fly.” Most other outlets spoke of ‘uploading’ information to the brain, and learning in seconds. The one thing I was certain of from reading these headlines is that this was not what was happening. Brain-machine interface technology is...
Air Pollution and Public Health
Public health measures are those not aimed at individuals but at society as a whole, or subgroups within society. Physicians are charged not only with promoting the health of their own patients, but as a profession we (and health care professions in general) are charged with promoting the public health. Public health measures, however, are highly likely to cross into politically charged...
Organic vs Conventional Meat and Milk
Two recently published meta-analyses, one on meat and another on milk, conclude that levels of polyunsaturated fatty acids (PUFA) and omega-3 fatty acids are higher in the organic versions of both. This is being widely reported as evidence that organic meat and milk is healthier, but a closer look at these two studies shows a different picture. The organic false dichotomy I...
Update on the Zika Virus
A new word has been added to the public’s vocabulary – the Zika virus. It seems we have one more infectious agent to worry about. Here are the facts as we currently understand them regarding the recent Zika epidemic, and also some rumors and conspiracy theories that need debunking. Zika virus The Zika virus (of the viral family Flaviviridae, an Arthropod-Borne or...
Laws Limiting Vaccine Exemptions Work
It’s nice when a question can be resolved with objective numbers of unequivocal outcomes. Subjective outcomes give scientists a headache. In this case we are talking about the effect of vaccine exemption laws on vaccine compliance rates. The question here is not the ethical one, the rights of parents to determine the fate of their children vs the right of the state...
More Trouble for Antioxidants
Antioxidants are now an iconic example of premature hype making its way into marketing and the public consciousness long before the science is adequately understood. There are multiple lessons to be learned in this story, and a new study just emphasizes those lessons further. A brief history of antioxidants One of the unavoidable consequences of metabolism (burning food for energy) is the...
The Clean Eating Delusion
While some parts of the world are concerned with eating, because of food insecurity, the “worried and well-fed well” are increasingly obsessed with so-called “clean eating.” This is nothing new, but like every cultural phenomenon, it seems, has increased partly due to the easy spread of misinformation over the internet. If you are anxious about your health, and who isn’t to some...
HPV Vaccine Safety and Acceptance
The public fight over the human papillomavirus (HPV) vaccine is still raging. The debate partly reflects the underlying logic of health prevention measures, which is essentially a statistical game of risk vs benefit. Unfortunately thrown into the mix are ideological opponents to vaccines who are distorting the facts at every turn. Notice that I said this was a “public” fight, because it...