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The brain never actually loses a memory. It records each one
like a computer.
However, problems with recall begin when we don't practise
retrieving this information and so the memories we had become
lost.
The brain, like other parts of the body, needs physical and
mental exercise, together with particular nutrients, to increase
the power of memory.
Here we present ten things to remember to do in order never to
forget anything . . .
SOYA
According to Professor Sandra File, head of the
psychopharmacology research unit at Guy's Hospital in London,
isoflavones, the natural plant oestrogens in soya foods, might act
on oestrogen receptors in the human brain, particularly those in
the hippocampus, a crucial area for memory.
As a result, new nerve connections form more readily.
Medical trials revealed that those fed a high soya diet showed
improvements in verbal and nonverbal memory and in mental
flexibility, all of which is controlled by the brain's frontal
lobes. Soya can be added to the diet through natural products such
as soya milk or through a recommended daily 50mg soy isoflavone
supplement.
MEMORY MINERALS
Studies at Kings College, London, and the University of
Rochester in New York showed that a reduced iron intake can have a
detrimental effect on IQ levels and cognitive function.
This is because lack of iron causes low haemoglobin levels,
which affect the supply of oxygen to the brain. Iron also plays an
important role in the transmission of signals in the
Boost your brain
power with some
mental exercises
brain.
If you are concerned about children's memory at exam time, give
them an iron-rich drink like Spatone, which can replace iron
missing from the diet.
Deficiency of zinc, found in oysters, red meat and peanuts, can
also interfere with memory. Take a supplement of 7-9mg daily.
COFFEE
Caffeine can improve mental and memory performance because it
stimulates many regions of the brain that regulate wakefulness,
arousal, mood and concentration.
Researchers at the University of Arizona found that older adults
who drank half a pint of coffee just before a memory test saw a
significant improvement in performance compared to those who drank
decaffeinated coffee.
However, the benefits might be confined to regular coffee
drinkers. Others could suffer side-effects such as shakiness,
anxiety or impaired concentration.
It is still best to drink no more than six cups of coffee a day
- those with heart problems should drink less. Too much brewed or
percolated coffee can raise blood cholesterol - instant or filter
coffee are better choices.
MENTAL EXERCISE
Research has shown that mental stimulation keeps the brain
healthy and increases the strength of memory.
People with excellent memories tend to have various interests
and tackle challenging mental tasks.
As we age, it is normal to have changes in memory, but keeping
the mind active does diminish weaknesses. Clinical psychologist Ron
Bracey suggests using techniques such as puzzles, crosswords and
widening cultural and social interests, all of which creates
different pathways in the brain.
PHYSICAL EXERCISE
Half-an-hour of activity three times a week is enough to bring
about significant increase in brain power, says a study at the Duke
University Medical Centre in North Carolina.
Exercise improves the heart's ability to pump blood more
effectively. Memory benefits from improved blood flow to specific
regions at the front of the brain whose functions include planning,
organisation and the ability to juggle different intellectual
tasks.
Exercise may also speed glucose metabolism, which improves
recall as well as reducing stress, which can interfere with
memory.
CHEWING GUM
Japanese researchers found that activity in the hippocampus, an
area of the brain important for memory, increases while people
chew.
Recent research also suggests that insulin receptors in the
brain may be involved, too, as chewing releases insulin because the
body is expecting food.
But, says Dr Andrew Scholey of the University of Northumbria,
the simplest reason could be that chewing increases the heart rate,
thus improving the delivery of oxygen to the brain and enhancing
its cognitive powers.
GINKGO BILOBA
Ginkgo is the world's oldest living tree and first appeared
around 300 million years ago. It has been used for memory
enhancement in Eastern cultures for thousands of years.
Dr George Lewith, complementary health consultant to Boots, says
ginkgo improves blood circulation to the brain by dilating blood
vessels and increasing its oxygen supply.
Ginkgo also mops up harmful compounds known as free radicals,
which are thought to damage brain cells. Recommended supplement
dose is 120 mg a day.
OILY FISH
Omega 3 fatty acids, found in oily fish, are essential
componentsof brain cell membranes, and their role in cell structure
is thought to improve the powers of memory.
High concentrations of Omega 3 in the brain and nervous system
not only boost learning powers and age-related memory, but also
greatly enhance mood.
Omega 3 is particularly important during foetal development, so
pregnant women should have a regular supply. Good sources include
fish such as sardines, salmon, herring and mackerel.
Sardines are also a rich source of the nutrient choline, which
is a key brain chemical associated with memory. Try to eat three
portions of oily fish a week or take a supplement of 330mg three
times a week.
ROSEMARY AND SAGE
Essential oil made from rosemary and sage can stimulate the
memory, strengthen clarity and awareness, and help to relieve
mental fatigue.
Psychologists at the University of Northumbria tested essential
oils from rosemary on memory attention and mood and discovered it
made volunteers feel more alert and enhanced their long-term memory
by around 15 per cent.
Volatile molecules from essential oils can also stimulate the
olfactory nerve in the nose, which could affect brain
functioning.
Some studies have found that volunteers' ability to remember
lists of words improved by more than 10 per cent if they had taken
a capsule of sage oil.
Lemon balm, a member of the sage family, also appears to improve
attention span.
VITAMIN B
B vitamins deliver oxygen to the brain and provide protection
against free radicals.
They help to sharpen senses and boost memory.
Niacin or B3 is particularly good for brain enhancement, while
B6 is essential for the manufacture of neurotransmitters,
especially mood-enhancing serotonin.
B12 is important for overall health of brain cells.
B vitamins are also needed to help the body form acetylcholine,
a key brain chemical needed for memory.