Do you know your cells? (2)

Your cells are of many shapes and sizes.  4,000 cells of the same size laid side by side would make a row only one inch long!

When you were a baby you grew very fast as your cells were multiplying rapidly.  Gradually your rate of growth slowed down.

Between 10 and 12 years of age you began to spurt up again for three to five years.  After 20 you grow HEAVIER and no taller.

AMAZING ISN’T IT?

20/20  VISION  —  SEEING YOUR POSSIBILITIES!

Do hormones have an inner room?

Before puberty begins, hormones play a major part in regulating growth.  The growth hormone, somatotropin, is used as the main substance by the innate intelligence of the body to control height.  It is one of several hormones secreted by the pituitary gland which dangles from the base of the brain, just above the roof of the mouth.

Somatotropin stimulates bone and muscle growth, maintains the normal rate of protein synthesis in all body cells, and speeds the release of fats as an energy source for growth.

AMAZING ISN’T IT?

20/20 VISION — SEEING YOUR POSSIBILITIES!

Domino effect of hormones?

The innate intelligence of the body coordinates the endocrine functions and allows secretion of hormones to control how fast we grow.  Scattered through the body like tiny islands, the endocrine glands affect every aspect of our growth, physical and mental development, reproduction and cell repair.

Endocrine glands act on organs or certain types of tissues located in other parts of the body releasing hormones or chemical regulators, into the bloodstream.

AMAZING ISN’T IT?

20/20 VISION — SEEING YOUR POSSIBILITIES!

Are there really growth spurts? (2)

We do not grow at a constant rate.  The most rapid rate occurs before birth, when in the space of nine months, the fetus increases in weight about 2.4 billion times.   One of our blogger, Lesley, is now pregnant and she is experiencing this very reality.

After birth, two spurts of growth, one in the first two years and again at puberty, are separated by a slower, more steady rate, where height increases by two to three inches a year and weight increases by five or six pounds.

By their first birthdays, babies usually weigh three times their birth weight and have grown in height by 50%.  Adolescents may grow four to six inches a year.

We must note that growth is very much under the direct control of the innate intelligence of the body.

Amazing isn’t it?

20/20 VISION — SEEING YOUR POSSIBILITIES!

How do we get bigger and bigger? (2)

Growth involves either an increase in size of existing cells or the creation of new ones by cell division.  Both processes are at work throughout life, but one tends to dominate at any given stage of development.

Growth is not a simple story of cells getting bigger and bigger.  They cannot.  There is a physical limit to their size.   Many cells are ball shaped.  As cells enlarges, its volume increases at a rate greater than its surface area.

Amazing isn’t it?

20/20 VISION — SEEING YOUR POSSIBILITIES!