Medescape

Skepticism, Medicine and Science News

Fine Polish

Scientists have developed a new method of protecting teeth from bacterial attacks. By using technology from the semiconductor industry, Igor Sokolov  and hh from the Clarkson University Center for Advanced Materials Processing used  silica nanoparticles to polish teeth down to nanoscale roughness. When polished this finely, the bacteria had difficulties sticking to the dental enamel, and could thus be removed fairly easily. Polishing teeth is in itself not new, but no one has thought to use nanoparticles to do it before Sokolov and Gaikwad.  The study was published in the Journal of Dental Research

To the left, the unpolished surface of a tooth. To the right, the surface of a tooth after nanoparticle polishing. 

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December 22, 2008 Posted by | Medicine | , , , , , , , , , , , , , , , , , , , | Leave a comment

Fast Food Advertising

A new study finds that banning fast food advertising during children’s TV-shows could reduce obesity in children ages 3-11 by 18%. In children ages 12-18 the effect would be less, about 14% according to the study. 

The study was published in the Journal of Law and Economics, and conducted by researchers from the National Bureau of Economic Research (NBER) with funding from the National Institutes of Health. The researchers used data from the 1979 Child-Young Adult National Longitudinal Survey of Youth and the 1997 National Longitudinal Survey of Youth, enabling them to assess the viewing habits of over 13,000 children.

The researchers pointed out that implementing a ban on advertising might not be the most practical thing to do. The only countries having this kind of ban against commercial sponsorship of children’s TV-shows are currently Norway, Sweden and Finland, and these countries have a much more of a tradition for government involvement in these kinds of matters than the US. Another solution might be to eliminate the tax deductibility that comes with advertising. Since advertising is considered an expense it reduces the company’s income and thus the amount of tax. Eliminating the deductibility would in effect mean that advertising would become about 54% more expensive, and even though it would be less effective than an advertising ban, it would still reduce by about 5-7%.

November 30, 2008 Posted by | Economics, Medicine | , , , , , , , , , , , , , , , , , | Leave a comment

My Top 5 Health Cranks

This post will be pretty much dedicated to five people I utterly despise. They take advantage of people by conning them into buying their special kind of bs for whatever ails them, thus preventing them from seeking out a doctor to get some real help. They have no regard for other peoples lives, as long as they make som money. And here is the list: Continue reading

October 23, 2008 Posted by | Medicine | , , , , , , , , , , , , , , , , , , , , , , , , , , | 2 Comments

Not so light cigarettes

A new study was just published showing that there is very little difference between “light” and ordinary cigarettes in that they deliver nearly equal amounts of nicotine to the brain. 

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September 30, 2008 Posted by | Medicine | , , , , | Leave a comment