Saturday, March 10, 2007

3572

Mismatch: Why our world no longer fits our bodies

The review of this 2006 title in Nature, Feb. 8, 2007, caught my eye because of the 1/3 page photo of an obese guy, remote in one hand, huge bowl of chips in the other, sitting on the edge of his easy chair so his belly could rest on his thighs, bathed in the blue light of the TV, probably watching a sporting event while reliving the memories of the days he could put one foot in front of the other without heavy breathing. According to Michael Sargent, the reviewer who is a developmental biologist at the National Institute for Medical Research in London, authors Gluckman and Hanson believe humans are not adapting in the proper evolutionary way to increased energy dense food and our 21st century sedentary ways. Look at that guy. He has adapted just fine! All that's happened is he's just not "evolving" in the direction biologists had hoped. According to their theories, those species who don't adapt, die off. Aren't we doing just that? No. We just get fatter--and they've been keeping track since our Civil War. But the line that really made me burst into laughter (well, OK, just a smile) was Sargent's: "[I was] horrified by persistent references to the 'design' of organisms--a usage notably obstructive to an understanding of the evolutionary process, the disclaimer notwithstanding." Mr. Sargent, sir, deal with it!

Mismatch: why our world no longer fits our bodies, by Peter Gluckman and Mark Hanson, Oxford; New York: Oxford University Press, 2006.

1 comment:

Bonita said...

And, diabetes is on the rise. Sedentary lifestyle, too many carbs and fruit-drinks. My husband just came down with it due to eating large portions, even though his food choices are excellent...his body couldn't produce enough insulin. Now, he eats 5 small meals a day, and only water with meals.