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Despite the old adage
that metabolism is associated with weight, it’s only a myth.
There is not much validity to the ‘belief’ that slender individuals
have a high metabolism and overweight people have slow ones.
While certain people may suffer from a thyroid condition which
in turn affects the metabolism, weight alone does not determine
one’s metabolism.
In
actuality, weight loss or gain relies on the amounts of caloric
intake and how much energy is expended. When the body has more
incoming calories and has less calories being burned, weight
gain is inevitable. It makes the most weight sense that reduced
caloric consumption triggers weight loss. Metabolism is the
motor that uses the body’s fuel or energy.
In terms
of medical science’s definition of metabolism, it is the process
by which the body extracts energy from food. When the biochemical
process transpires, the calories originated from fats, carbohydrates
and proteins — are combined with oxygen to discharge the energy
the body requires to operate and function.
The amount
of calories that the body utilizes to burn calories is referred
to as the total energy expenditure. Three fundamental factors
are comprised of the total energy expenditure:
• General
requirements. Even when the body is sedentary it requires energy
for fueling the organs, blood circulation, breathing, regulating
hormone levels, the growth and rejuvenation of cells.
• Physical
exertion. Exercise coupled with physical activity and other
movements account for the utilization and expenditure of calories.
• Food
processing. Digestion, absorption and the process of transporting
food as well as how it is stored necessitates energy or calorie.
These processes account for approximately 10 percent of the
calories expended daily. By and large, the body's energy requirements
needed to process food remains relatively stable and does not
change.
Calories
expended to cover these basic functions are your basal metabolic
rate. Typically, a person's basal metabolic rate is the largest
portion of energy use, representing two-thirds to three-quarters
of the calories used each day. Energy needs for these basic
functions stay fairly consistent and aren't easily changed.
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