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[MUSIC PLAYING]
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NARRATOR: Why is nature
always called Mother Nature?
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Perhaps it's because,
like any mother,
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she quietly manages
so much of our living
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without our ever realizing
there's a woman at work,
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while right from the beginning
we breathe, and sleep, and wake
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up with no more
conscious planning
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than we used in sprouting teeth.
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Mother Nature controls many of
our routine bodily processes
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through automatic control
centers called glands.
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The story of menstruation
really begins
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with one particular gland.
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It's located here at
the base of the brain.
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And it's called the
pituitary gland.
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In our childhood years,
this pituitary gland
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concentrate on producing
growth hormones,
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busy little messengers
which circulate
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through the bloodstream.
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They order the various bones
and tissues to get growing.
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And as a girl grows up
from blocks, to dolls,
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to books, that means her
body is obeying the orders
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issued by the pituitary gland.
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Of course these orders
vary among different girls.
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Some girls grow short,
some tall, some heavy,
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and some slight.
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But there comes a time somewhere
between the ages of 11 and 17,
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though about 13 is average,
when the pituitary must
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turn part of its
attention to maturing
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the body which it has grown.
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So it starts sending
out a new type
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of hormone, a maturing hormone.
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And that is when menstruation
begins, when these maturing
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hormones start coming down
through the bloodstream
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to the ovaries.
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The ovaries themselves
are glands about the size
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of almonds.
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And locked within each
ovary are thousands of eggs.
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Although these eggs
are too small to be
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seen by the human
eye, any one of them
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has the possibility of someday
becoming a human being.
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Near the ovaries are
the fallopian tubes,
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short canals which lead
to the uterus or womb.
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This hollow,
pear-shaped organ opens
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into the vagina, which is
part of the birth canal
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and is the external opening
for this whole group of organs.
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So, as you see, there
is a continuous passage
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from each ovary through the
fallopian tubes, uterus,
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and vagina to the
outside of the body.
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These organs function
in a continuous cycle.
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The pituitary gland
starts the process
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when it sends its
maturing hormones down
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through the bloodstream
to the ovaries.
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Now one of the ovaries
passes on an order of its own
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to the uterus.
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It tells the cells which make
up the lining of the uterus
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to multiply and fill themselves
with watery fluids and blood.
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This begins to build
up a thickened lining
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of somewhat velvety material.
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At the same time, on ovary has
been maturing an ovum, or egg,
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which is magnified here
so that we can see it.
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About once a month,
one of these tiny eggs
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passes out of the
ovary and finds its way
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into the fallopian tube,
where it moves along
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toward the uterus.
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If the egg is impregnated, which
happens when a woman is going
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to have a child, the egg
will stay within the uterus.
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Then the thickened lining
will provide nourishment
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for the budding human being
through the early days
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of its development.
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However, most eggs pass
through the fallopian tubes
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without being fertilized.
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When this happens,
there's no use
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for that potential nourishment
in the built-up lining
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of the uterus.
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And so in a few days,
it passes from the body.
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This is the flow which
we call menstruation.
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So, as we see now, menstruation
is just one routine step
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in a normal and natural cycle
that is going on continuously
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within the body.
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The time between periods
is usually about 28 days.
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However, it may be
shorter for some girls
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and longer for others.
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The flow itself may last
anywhere from three days
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to seven.
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Yet each of these different
schedules may be normal.
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For just as the
pituitary gland orders
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some girls to grow short,
some tall, some heavy,
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and some slight, so its
orders about menstruation
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may differ widely
among normal women.
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The important thing
is that you should
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be fairly regular
within yourself.
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Of course, a girl may be
irregular during the first year
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or so.
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But after that, when her
system has settled down
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into a routine, her
period should always
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be about the same
number of days apart
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and last about the
same length of time.
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Try not to throw
yourself off schedule
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by getting over tired,
emotionally upset, or catching
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cold.
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And if your timing
goes seriously wrong
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or you're bothered with
severe cramps or headaches,
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you should have a
talk with your doctor.
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Of course you'll want to
keep a personal calendar.
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Mark the first day
of each period,
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and check to see that there are
about the same number of days
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between periods.
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It's not only a useful
record of past performance,
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but it comes in handy when
you have to plan ahead.
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This calendar appears in
an interesting booklet
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called Very Personally Yours.
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This booklet has been
prepared to enlarge
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upon what you learned
from this brief film.
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Among other things, the
booklet explodes that old taboo
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against bathing
during your period.
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Not only can you bathe.
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You should bathe, because during
menstruation your perspiration
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glands are working overtime.
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Just be careful to avoid
either very hot water or very
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cold water.
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In fact, it's not a
good idea at any time
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to shock your
system with extremes
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any more than to let yourself
get chilled or to catch cold.
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And as for the old taboo against
exercise, that's nonsense.
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Exercise is good for
you during menstruation.
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Just use common sense.
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When you come to think of it,
most of your daily routine
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is on the mild side.
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It's going to extremes that's
wrong and to be avoided.
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To most girls, the
menstrual period
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should bring no
severe discomfort.
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Some girls have a
little less pep,
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the feeling of pressure in the
lower part of the body, perhaps
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an occasional twinge
or a touch of nerves.
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But don't let it get you down.
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After all, no
matter how you feel,
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you have to live with people.
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You have to live
with yourself too.
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And once you stop feeling
sorry for yourself
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and take those days
in your stride,
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you'll find it easier to keep
smiling and even tempered.
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You can do practically
everything you normally do.
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Come now, we said
practically everything,
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provided you take common
sense care of yourself.
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Exercises to relieve cramps
are illustrated in the booklet.
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Try them.
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With the guidance of a qualified
person, you may find they help.
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And do something
about that slouch.
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Slumpy posture is
just as bad inside
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as it looks outside, so stand
up straight and let the organs
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function from the position
that nature intended.
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One way to help them
function normally
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is to avoid constipation.
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You see, your
reproductive organs
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lie between the
rectum and the bladder
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and their external openings.
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And constipation will
disturb the relationship
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between these organs.
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So you'll find it worth your
while to drink plenty of water,
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eat plenty of fruit,
and to include
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cereals, and eggs, and leafy
vegetables in your daily diet.
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And incidentally, it's
smart to keep looking smart.
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That well-groomed feeling
will give you new poise
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and lift your morale,
especially when it's backed up
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with year-round fresh air,
and sunshine, and plenty
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of rest and sleep.
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Because the best
possible insurance
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against trouble on those days
is healthy living every day.
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And that's the story.
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There's nothing strange nor
mysterious about menstruation.
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All life is built on cycles.
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And the menstrual cycle is
one normal and natural part
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of nature's eternal plan for
passing on the gift of life.
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[MUSIC PLAYING]