104 Rew i r e
Yo u r
B r a i n
When you take omega - 3 supplements
or consume a lot of fi sh,
vitamin E reverses a process in which fatty acids become rancid.
This rancidity can be very damaging to cell membranes (Laganiere
and Fernandez, 1987).
Minerals and Phytonutrients
Minerals, too, are important for the healthy functioning of the brain.
There are two classes of minerals that are relevant to the brain: macro-
nutrients and micronutrients. The brain contains more macronutrients
than micronutrients. The
macronutrients include calcium, magne-
sium, sodium, potassium, and chloride. The micronutrients are also
called
trace elements
because they are found in tiny amounts in the
brain and the body. They include iron, manganese, copper, iodine,
zinc, fl uoride,
selenium, chromium, aluminum, boron, and nickel.
These micronutrients can cause problems when they are found in
large amounts in the brain. Aluminum,
for instance, has been found
in excessive amounts in the brains of people with Alzheimer ’ s disease.
Although the question of how aluminum gets into the brain is debat-
able, it is undebatable that the excessive presence of aluminum is
destructive.
Calcium is the most abundant mineral
in your brain and serves
many functions, including the development of nerve tissue, the
maintenance of a regular heartbeat,
the formation of blood clots,
the strength of bones and teeth, the production of iron, the mainte-
nance
of a steady metabolic rate, and the transmission of messages
between your neurons. Calcium triggers the release of neurotrans-
mitters and controls synaptic strength. After the neurotransmitters
are
released, the calcium enhances the strength of subsequent
synaptic connections.
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