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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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