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Transcript
THE BRAIN!
Your brain is the most complex,
mind-blowing organ in the
Universe
 It is estimated to be only about 3 pounds,
which is usually around 2 percent of your
body’s weight.
 Unbelievably, given that it is the bedrock of
your personality, some think even your soul,
it is 85% water!
 It is estimated that the brain has 100 billion
nerve cells and more connections in it than
there are stars in the universe, which is about
the number of stars in the Milky Way Galaxy.
There are also trillions of
supportive cells in the
brain called glia.
 A piece of brain tissue the size of a grain of
sand contains 100,000 neurons and 1 billion
synapses, all "talking" to one another.
Information in your brain travels at about
268 miles per hour, unless of course you are
drunk, then things really slow down.
 Even though your brain is only about 2% of
your body’s weight, about 3 pounds, it uses
20-30% of the calories you consume.
 If you don’t take care of your brain, you lose
on average 85,000 brain cells a day. That is
what causes aging. With appropriate
forethought, however, you can reverse that
trend and dramatically slow the aging
process.
 Your brain is the consistency of soft butter,
tofu, custard or somewhere between egg
whites and jello.
 At times during
pregnancy, the
baby’s brain makes
250,000 new nerve
cells per minute.
 Babies are born
with 100 billion
neurons; however,
only a relatively
small number of
neurons are
connected.
 At age 11, the brain begins to prune extra
connections at a rapid rate. The circuits that
remain are more specific and efficient.
 The brain is one of the best examples of the
“use it or lose it”•principle. Connections that
are used repeatedly in the early years become
permanent; while those that are not used are
pruned.
 The knowledge of brain development into
adulthood is critical to disseminate. Early
smoking, drug or alcohol abuse, and brain
injuries from risky sports all have the
potential to disrupt brain development, in
some cases permanently.
 There are three distinct areas of the brain,
controlling our instincts (brain stem), our
emotions (limbic system), and our thoughts
(cortex).
 The brain is also divided into the left and right
hemispheres, or halves. The left side is often
known as the detail oriented, get to the point,
speech and happiness center; while the right
side is known as being more fretful, more
creative, and holistic processing center.
 The human brain is dependent on proper
stimulation to grow and develop in healthy
ways throughout childhood and to maintain
its functioning into old age.
 When you stimulate neurons in the right way,
you make them more efficient; they function
better, and you are more likely to have an
active, learning brain throughout your life.
 The best sources of stimulation for the brain
are physical exercise, mental exercise, and
social bonding, which will be discussed in
greater detail later on.
 Brain Scans
Alzheimer’s Disease in brain
The following pics. are
results of drug abuse
Faces of Meth
Meth
Physical fetal alcohol
effects
alcoholic