This
may come as a surprise to
you, but some of the foods
most likely to enliven the
holiday table are really
good for you and can
deliver a bundle of
benefits to your heart and
your brain. As a matter of
fact, what's good for your
heart is also good for
your brain.
From
stuffing to cranberries to
red wine to hot chocolate,
and even that last sip of
coffee, there are many
traditional dishes that
boost blood flow to your
most oxygen-hungry organs
and preserve and even
enhance mood, memory and
other mental functions.
Call them brain savers.
Take
stuffing. Turkey's
traditional holiday
partner is rich in
antioxidants. Bread crust
is packed with them, far
more so than the less
chewy inside of bread.
Antioxidants
are premiere
disease-fighters and
anti-aging agents. They
are compounds that
scavenge free radicals of
oxygen, unstable molecules
given off by the body's
many metabolic actions.
Free radicals are thought
responsible for making
cholesterol harmful to
arteries and the heart and
for impairing memory and
movement with age. They
are particularly drawn to
the fat-rich membranes of
nerve cells through which
all brain activity takes
place. They are implicated
in immune dysfunction and
in cataracts and macular
degeneration of the eyes.
The
body manufactures some
antioxidants, although the
brain needs to import
those it needs from food.
Under conditions of
stress, the body's ability
to produce antioxidants is
impaired. Fruits and
vegetables are the richest
source of antioxidants.
Cranberries
virtually top the list of
antioxidant-rich foods.
Scientists have developed
a way of measuring the
antioxidant content of
foods, called ORAC, for
oxygen radical absorbance
capacity. Cranberries
outpulled some highly
touted antioxidant rich
goodies—strawberries,
spinach, raspberries,
broccoli, beets, red
grapes and cherries, among
11 others.
High-ORAC
food may help slow the
aging process in both body
and brain. Most Americans
average about 1,670 ORAC
units daily. Increasing
fruit and vegetable intake
can double antioxidant
activity. One cup of
blueberries—first cousin
to the cranberry—alone
supplies 3,200 ORAC units
Studies
in animals suggest that
cranberries are
particularly
neuroprotective, good at
battling chronic
age-related afflictions
like loss of coordination
and memory. They protect
brain cell from the
free-radical damage that
normally occurs over time,
thereby preserving
cognitive and motor
functions. Compared with
animals fed a standard
diet, aging animals given
cranberries showed actual
improvements in normal
age-related declines in
working memory, reference
memory, balance and
coordination. Indeed, they
were able to keep on
learning.
The
antioxidants in
cranberries belong to a
group of chemicals called
phenols. The strongest of
these, and most
extensively studied, are
procyanidins and
anthocyanidins, which give
cranberries and
blueberries their deep
color. They seem to be
particularly adept at
turning off a brain enzyme
(xanthine oxidase) that
actually stimulates the
creation of free radicals
of oxygen.
But
there are many other
antioxidants in
cranberries, and they are
just now coming under
scrutiny for their
function. Researchers
increasingly believe the
combination of nutrients
found in food are more
protective than individual
nutrients taken alone.
One
antioxidant compound in
cranberries actually helps
ward off urinary tract
infections. It blocks some
harmful bacteria from
attaching to the cells
lining the urinary tract.
Cranberries
are so powerful in
preserving brain function,
researchers found, that by
their antioxidant action
they can reduce the
severity of brain
impairment following a
stroke. They protect
against the brain cell
damage that usually occurs
in the early stages after
a stroke. Exposure to a
concentration of cranberry
extract equivalent to
about half a cup of whole
cranberries resulted in a
50 percent reduction in
brain cell death.
And
go ahead, finish it all
off with a cup or two of
coffee. Researchers have
identified an antioxidant
in coffee that is
particularly potent in
preventing colon cancer.
Or
savor a cup of hot cocoa.
Pure cocoa powder tops
both red wine and tea in
antioxidant power—two
times more than red wine,
two to three times more
than green tea, and up to
five times more than black
tea. Apparently, heating
the cocoa brings out the
antioxidants in it.