Some Causes of Asthma as Found Out By Researchers
In the last few
decades, people are increasingly becoming victim of asthma or breathing
trouble,
though no specific causes of asthma have been detected yet. Human body
needs oxygen to keep
blood cells active. However, during an asthma trouble the bronchial
tubes become constricted
or even chocked resulting into panting, wheezing or coughing as the
volume of air passing is
restricted through the airways.
There are two possible conditions related with an asthmatic’s airways bronchoconstriction and
bronchial inflammation.
Bronchoconstriction - This condition occurs when the muscles get tighten
around the bronchi
and squeeze the air passage causing breathing trouble.
Bronchial Inflammation - This has been lately researched out, which
happens when the walls
of bronchi swell up causing the creation of mucus in reaction to some
irritation. Probable causes of asthma
Research for the exact causes of asthma is still under process though
researchers hold up that a
combination of several factors act together to develop asthma, most
often at an early age. So let
us find out the probable causes of asthma.
Genetic factors - It is a widely established fact that if asthmatic
trend is found for generations in
your family, you are likely to develop asthma symptom. However, those
asthma-causing genes
are not yet recognized. It is believed that the genes related to asthma
involve the lungs and the
immune system.
Development of asthma during childhood - The early ages of a child is
quite tender and many
are vulnerable to develop asthma. The poor growths of lungs in infants
or premature babies are
one of the main causes of asthma, as they are defenseless to cold and
other respiratory infections.
These infections often results in inflammation and can even damage lung
tissues. Moreover, if
the child is exposed to passive smoking during this time, it will be
more detrimental.
Exposure to irritants - Irritants in work places such as chemicals,
dusts, gases, moulds and
pollens, which are common in industries including baking, spray painting
of cars, woodworking,
chemical production and farming, are one of the severe causes of asthma.
The immune system - Researches reveal that children and adults with
asthma are often allergic
and their immune system responds differently to things that do not cause
reaction in other
people. Their immune system overreacts with substances such as pollens,
mold, cat dander, virus
or bacteria, thus increasing the risk of asthma.
Over emphasizing of hygiene in the western countries, safeguard the
immune system of children
from being exposed to the bacterial infections, which results into weak
immune power. Thus,
later in life they are easily becoming victims of allergies concluding
in asthma. This is popularly
called "hygiene hypothesis."
Environmental factors - Many non-allergic or non-immunologic exposures
in the environment
develop asthmatic symptoms in many people. It has been studied that
people having asthma
are sensitive to animals, pollen moulds, dust and other air pollution.
Again, exposure to passive
smoking for a long time is a prime factor for developing asthma.
The well-furnished and carpeted apartments where children spend most of
the time are devoid of
fresh air, which encourages the growth of house dust mites in bedding,
carpets and furnishings.
All these play a vital role in developing
asthma symptom among children.
Dietary factors - Consumption of high proportion of processed food, a
high salt intake, lower
intake of omega-3 fatty acids and having a diet with less antioxidant
and fresh oily fish are also
major factors triggering asthma.
Lack of exercise - Paying less importance to exercise results in less
stretching of the airways to
the lungs. This increases the risk of muscle contraction in the airway
wall, causing asthma.
Researches are still under process to determine the role of genetics,
infections or immune system facilitating the development of asthma, to
manufacture more effective medicines for preventing asthma.
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