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Fat Cells:
The major portion of the fat is stored just under the skin.
Fat also surrounds important organs like the kidneys, liver and the heart.
Fat also gets deposited on the top and beneath the muscles in the human body.
For males the fat gets deposited in the chest, buttocks and abdomen and
in women the fat tends to gather in the breasts, buttocks, waist and hips.
Testosterone and estrogen, the two sex hormones, determine the position
of deposition.
Fat is technically known as adipose tissue which is composed of cells
called adipocytes. A fat cell looks like a tiny bag containing very small
quantity of fat. In earlier days adipocytes or fat cells were considered
to be storing extra calories only. Recent researches have made it clear
that adipocytes play a major role in producing and secreting a wide range
of substances in our body, playing important roles towards maintaining
the weight of our body. When excessive secretions or very little secretions
from these cells take place, several health problems in our body occur.
There are two types of adipose tissue. White adipose tissues are also known
as WAT and brown adipose tissues also commonly known as BAT.
The white adipose tissues are comprised of white fat cells or adipocytes
and brown adipose tissues are composed of brown fat cells.
White cells of fat are bigger than that of brown fat cells.
A while cell is composed of a nucleus which is small in size, little amount
of cytoplasm, and droplet of fat or lipid. The lipid is large and occupies
around 85% of the volume of the cell.
Compared to while cells, brown fat cells are much smaller in size.
Mainly occupied by mitochondria, Brown cells are made up of several droplets
of fat. Heat is generated by mitochondria and in adults brown cells
are found less in number.
The fat cell starts developing in a growing fetus when pregnancy enters
the 3rd trimester. When puberty commences, the fat starts getting
distributed to the several parts of the body which differentiates
between women and men. During the growth of the child, the fat cells
also divide and get multiplied in the body and the process is known as mitosis.
This continues until puberty. Every fat cell excretes hormones and sends
signals to other fat cells, and new fat cells can be created at any point
in time if the existing fat cells that already exist grow too large.
When you start losing weight, the fat gets burned from the fat cell’s center.
However, the fat cell once formed, remains there forever. What happen is
that the size of the cell gets reduced only unless you decide to remove
the cells by surgery by means of surgical process of Liposuction.
When food containing fat is eaten, the same gets absorbed in the stomach
and the intestines. Ultimately the molecules of fat get broken and fatty
acids and glycerol are produced and gets rebuilt after that.
Over a period of time, large deposits of these substances start damaging
the tissues and vessels. This causes impaired flow of blood which results
in various health problems; namely liver disease, high blood pressure,
diabetes, cancer and cardiovascular problems.
When fat gets transported in blood or lymph, fat molecules having larger size
are better than smaller size fatty acids. This is because of the fact that
larger size of fats attracts fewer amounts of water molecules through the
process of osmosis in comparison to the large number of molecules
of fatty acids.
So, it is high time you start reducing your fat by doing exercises
and taking healthy diet low in calorie.
For more info, download Fat Cells, a free ebook.
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