Word: physiologist
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Climbing off the couch and getting back into condition is a dicier proposition. Trying to do it too fast can actually be dangerous. "Among those at greatest risk for heart-attack death is the habitually sedentary person who engages in unaccustomed physical activity," warns Barry Franklin, physiologist and chairman of the American Heart Association's Physical Activities Committee. Before starting even a minimal exercise program, therefore, you should call your doctor for a preworkout O.K. or even a checkup...
Whatever you choose, begin with a shorter workout than you believe you can handle. "Consciously underdo," advises exercise physiologist Carl Foster of the University of Wisconsin--La Crosse. "We're all 19 behind our eyes, but if you jogged 10 miles a day when you were in college, that doesn't mean you can do it now." Besides, once you're comfortable with a more modest workout load, you can slowly increase it--about 10% a week, Foster recommends. Government guidelines suggest that if you're having trouble finding the time or energy for a full exercise session...
...really equal to a full session of aerobic exercise? I had Miriam Nelson, a respected exercise physiologist at Tufts University, look at the three studies cited on the website. What they actually say, she explains, is that adding an intense four-minute workout to your regular aerobic routine can make you slightly fitter. Beyond that, the studies were small and 10 years old. If the four-minute workout truly worked, Nelson says, "everything we know about fitness and metabolism would be wrong. I just don't buy it." Oh, well. I guess I'll just go running. --By Michael...
...small enough and computers powerful enough to record scores of individual neurons at once. The goal is to identify the changing patterns of neuronal firing during sleep. "There are days when we can record up to 500 neurons, but that's not typical," says Bruce McNaughton, a psychologist and physiologist at the University of Arizona in Tucson, who studies rats. More typically, he is able to tap between 50 and 100 neurons. That's not a lot when you consider that even a rodent's brain has 125 million neurons. But it was enough to get him started...
...when commercial production of the wheat-based plates and bowls begins next year, consumers will see only EarthShell's name on the label. There will be no reference to ARS. "We don't want the USDA to appear as an endorser," says Ed Knipling, the mild-mannered plant physiologist who runs ARS. "We don't brand our products...