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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