Quantum Sufficit
Just Enough
I scream, you scream, we all scream-for smaller bowls of
ice cream? A study in the American Journal of
Preventive Medicine suggests that people wanting to lose weight should
eat from smaller bowls and use smaller serving spoons. Eighty-five nutrition
experts were given a 17-oz or a 34-oz bowl and were asked to serve themselves
ice cream using either a 2-oz or a 3-oz scoop. Participants given the larger
bowls served themselves 31 percent more ice cream than those with smaller
bowls. Among those who used a larger spoon, portions increased by 14.5 percent
regardless of the size of the bowl. (Am J Prev
Med, September 2006)
Is pregnancy a lot more draining than most women expect?
According to a survey of 1,000 pregnant women conducted by a baby charity, one
in five pregnant women says she isn't emotionally ready to have a baby.
Sixty-seven percent of the pregnant women polled were more exhausted than they
expected to be, and 27 percent experienced stress during pregnancy because of
financial or relationship pressures. One third of the women received personal
comments during pregnancy that upset them. The charity cites these as reasons
why more social services should be available to women throughout pregnancy.
(BBC News, August 31, 2006)
"Lettuce" grab a salad! The Journal of the American Dietetic Association
states that people who eat salads have higher-than-average intakes of vitamins
C and E, lycopene, folic acid, and carotenoids than those who don't eat leafy
greens. According to data collected from nearly 18,000 participants, men who
ate raw vegetables or garden salads with dressing were 119 percent more likely
to meet the recommended daily allowance for vitamin C than men who didn't eat
salads. Similarly, women who ate salads were 165 percent more likely to meet
the allowance than their counterparts. (J Am Diet
Assoc, September 2006)
If you have to choose between Victor Frankenstein or a
safety-breaching donor service, you may be safer with the former.
New Scientist reported that the U.S. Food
and Drug Administration (FDA) shut down a firm that supplied body parts for
surgery. According to FDA investigators, the firm harvested body parts and
tissue from corpses in funeral homes without following federal guidelines. They
found errors in the medical histories of donors and a failure to prevent
bacterial contamination. By December 2006, the FDA expects that its Human
Tissue Task Force, which will ensure that new tissue regulations are
implemented, will propose changes to existing policies where necessary. (FDA
press release, August 31, 2006; New
Scientist, September 2, 2006)
You may not be able to set the clock forward to escape
jet lag, but a study in the Journal of Biological
Rhythms suggests that flights of no more than four hours may be less
stressful on the body's internal clocks. The most severe jet lag occurs when
passengers fly eastward through five to eight time zones; this large leap
results in the body's master clock overshooting the actual time. For a leap
forward of six hours, the peripheral components of the master clock will delay
themselves for 18 hours. A four-hour advance, however, pushes the body's entire
set of internal clocks forward in an equal sequence. So if your destination is
more than six hours away, the authors recommend a four-hour flight with an
overnight layover. (J Biol Rhythms, August
2006)
A little water clears us of our deeds! Study results
published in Science suggest that hand
washing "cleanses" the mind of unethical behavior, a result the researchers
call the "Macbeth effect." They asked 170 undergraduate students to focus on
their conduct throughout the day. Those who remembered a misdeed were more
likely to feel dirty than those who remembered a good deed. Among volunteers
who felt unclean and then washed their hands, only 41 percent helped a fellow
student in need of assistance, whereas 74 percent of those who remembered a
misdeed but had not cleansed their hands helped their peer. The researchers
concluded that the volunteers who washed their hands no longer needed to
perform a good deed to compensate for their bad ones. (Science, September 8, 2006)
| Copyright © 2006 by the American
Academy of Family Physicians. |









