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. |
