Wheat germ is a highly concentrated source of many nutrients.
Ages 18 to 29 now seen as a distinct life stage
Once the brain was thought to be fully grown after
puberty. Now, research shows it is still evolving into its adult shape
well into a person's third decade. It discards unused connections and
It's one reason many 20-somethings haven't chosen a
career path, married or become financially independent.
While the brain hasn't fully matured, young people
are expected to make important decisions about education, who to marry
or whether to go into the military, says neuroscientist Jay Giedd at the
National Institute of Mental Health. Postponing those decisions makes
sense biologically. Giedd says the 20s are known as a time for
The findings are part of a new wave of research into
emerging adulthood from ages 18 to 29, which neuroscientists,
psychologists and sociologists are now seeing as a distinct life stage.
For young adults, this decade is a stressful time
with a high rate of anxiety, depression, motor-vehicle accidents and
alcohol use, trends that tend to peak from 18 to 25 and level out by age
28, according to studies by Clark University.
New silk scaffolds aid in repair of bone fractures
By bonding silk protein microfibers to a silk protein
scaffold, biomedical engineers at Tufts University School of Engineering
have developed a composite that has high strength and bone
formation-friendly cell response.
The composite mimics the mechanical properties of
natural bone. The scaffold works as a temporary, biodegradable support
while new bone grows.
An estimated 1.3 million people in the United States
have bone graft surgery every year, researchers say.
The findings were published in the Proceedings of the
National Academy of Sciences online during the week of April 30, 2012
November is American Diabetes Month
Early treatment of pre-diabetes can prevent or delay type 2
About 79 million Americans are at high risk for
diabetes, because their blood sugar levels are higher than normal. They
Now, there's help.
A study by Southwestern Medical Center in Dallas
shows that intensive early treatment, first with insulin, then with a
diabetes drug, preserves the body's insulin-producing capacity,
according to Diabetes Care.
Previously, the first steps in treatment were to
emphasize diet and weight management, then to couple lifestyle changes
with the diabetes drug metformin.
Another new study published in The Lancet shows that
treating pre-diabetes early and aggressively with intensive lifestyle
changes and medication could be an effective way to reduce the risk of
developing type 2 diabetes.
Study subjects were divided into intensive lifestyle
intervention, pre-diabetes medicine (metformin) and placebo groups. The
analysis tracked the patients who did not progress to diabetes, and
those whose glucose levels returned to normal.
People in the back-to-normal-glucose group were 56
percent less likely to develop diabetes during the next 5.7 years,
regardless of whether lifestyle changes or aggressive medication caused
the return to normal. The study supports a shift to early and aggressive
At Duke University, doctors say both studies
emphasize the need to aggressively treat pre-diabetes as soon as it's
Waiting, or taking a one-step-at-a-time approach,
increases the risk of developing type 2 diabetes and exposes the body to
its damaging effects for a longer period of time.
Smaller pieces of food aid weight control
An interesting finding was presented at the annual meeting of the
Society for the Study of Ingestive Behavior: both animals and humans
find small pieces of food are more rewarding and filling than one large
In a study of 301 people, participants were served a three-ounce bagel
that was either whole or cut into several pieces.
A meal was served 20 minutes later, and subjects were told to eat as
much as they wanted.
Those who ate the whole bagel ate more calories both from the bagel and
the meal than those who ate bagel pieces.
The researchers found that smaller, multiple pieces are perceived as
being a larger quantity. They were more rewarding and provided
recipients with greater satisfaction.