Calories
are simply units of measure, not actual things. They are labels like
an inch which really isn’t anything, but it measures the distance
between two points.
So what
do calories measure?
Energy.
Your
body creates energy from the food you eat, whether it's healthy food
or not. It creates energy from fruits and vegetables using the same
process that it uses to create energy from chocolate bars and candy.
While
you know it's better for your body to get energy from fruit and
vegetables, your body doesn't evaluate the food. It creates energy
from whatever you feed it.
It
sounds strange, but the body really doesn’t care. To the body,
energy is energy. It takes whatever it gets, and doesn’t really
know that some foods are healthier than others. It’s kind of like
a garbage disposal: it takes what you put down it, whether it should
go down or not.
So let’s
apply this to the body, and to weight gain. When the body receives a
calorie it must do something with that energy. If a carrot delivers
100 calories to the body, it has to accept those 100 calories. The
same goes for 200 calories from chocolate bars and candy.
The body
does one of two things to the energy, it either metabolizes it via
anabolism, or it metabolizes it via catabolism. That is, it will
either convert the energy (calories) into cells/tissue, or it will
use that energy (calories) to break down cells.
When
there is an excess of energy, and the body can’t use this energy to
deal with any needs at the time, it will be forced to create cells
with that extra energy. It has to.
It
doesn’t necessarily want to, but after figuring out that the energy
can’t be used to do anything (such as help you exercise or digest
some food), it has to turn it into cells through anabolism.
And
those extra cells? Yup, you guessed it: added weight.
In a
nutshell, the whole calorie/metabolism/weight gain thing is really
just about excess energy. When there are too many calories in the
body, they are transformed into fat.
Sometimes
those extra calories are transformed into muscle. In fact, muscles
require calories to maintain their mass, so people with strong muscle
tone burn calories without actually doing anything; their metabolism
burns it for them.
This is
the primary reason why exercising and building lean muscle is part of
an overall program to boost your metabolism. The more lean muscle you
have, the more places excess calories can go before they’re turned
into fat.
There’s
a nasty rumor floating around that fat cells are permanent.
Unfortunately, the rumor is true. Most experts agree that once fat
cells have been created, they're permanent. But this doesn’t spell
doom and gloom for those of us who could stand to drop a few pounds.
Even though experts believe that fat cells are permanent, they also
agree that fat cells can be shrunk. So even if the number of fat
cells in your body remains the same, their size, appearance and
percentage of your overall weight, can be reduced.
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