Painful and debilitating oral diseases such as tooth decay, gum disease and oral cancers are estimated to impact more than 3.5 billion people across the globe. Yet nations have almost universally failed to grapple with this health crisis, an international team of experts has concluded.
In the first article in a two-part series, led by researchers at the University College London and published by The Lancet, members of the team explore the extent of the epidemic, which burdens nearly half the world’s population. Continue reading
Spend any significant amount of time reporting on research and you’re bound to run across a real stinker of a study.
Too often, the studies that become clickbait on the web or turn up in women’s magazines – usually boiled down to a surprising health tip – are just, well, how do I put this? Crap.
There are a lot of those kinds of studies in the world. Studies that are too small to be meaningful, or they ask bad or useless questions, they’re poorly designed or they essentially answer a question that’s already been repeatedly answered.
These kinds of studies exist because the publish-or-perish culture of academia rewards volume over value. And let’s accept our part in this, too. There’s always a media outlet that’s willing to trumpet a surprising, if completely unsound, study.
In a microcosm, a bad study or two can raise an eyebrow or a chuckle. In a macrocosm, however, the situation is dire. Continue reading
A scientific scuffle played out in the pages of the Lancet recently. At issue was whether a team of scientists led by Dr. Damien Cruse at the University of Western Ontario had successfully used EEG, a test that measures the electrical activity of the brain, to detect awareness in brain-damaged patients who were in a vegetative state, a finding they first reported in 2011.
Other scientists who were working on the problem of awareness had been gobsmacked by the results.
Patients in vegetative states eventually open their eyes. They wake and sleep. But otherwise they have little awareness of what’s going on around them. Some of their reflexes may still be intact but, according to diagnostic criteria, they don’t respond to commands or understand language.
To show that 3 out of 16 of these patients were able to follow verbal instructions to imagine opening and closing a fist or wiggling their toes at the sound of a series of beeps was “pretty impressive,” says Andrew Goldfine, M.D., a neurologist at Weill Cornell Medical College and Burke Medical Research Institute in New York. Continue reading