Asthma is caused by a variety of factors:
·
Allergies: Almost all asthma sufferers have allergies. In fact, over 25% of
people who have hay fever(allergic rhinitis) also develop asthma. Allergic
reactions triggered by antibodies in the blood often lead to the airway
inflammation that is associated with asthma.
Allergies: Almost all asthma sufferers have allergies. In fact, over 25% of
people who have hay fever(allergic rhinitis) also develop asthma. Allergic
reactions triggered by antibodies in the blood often lead to the airway
inflammation that is associated with asthma.
·
Tobacco smoke: This has been linked to a higher risk of asthma as well as a higher
risk of death due to asthma, wheezing, and respiratory infections. Children of
mothers who smoke and people exposed to second hand smoke have a higher risk of
asthma prevalence.
Tobacco smoke: This has been linked to a higher risk of asthma as well as a higher
risk of death due to asthma, wheezing, and respiratory infections. Children of
mothers who smoke and people exposed to second hand smoke have a higher risk of
asthma prevalence.
·
Environmental factors: Allergic reactions and asthma symptoms are often
the result of indoor air pollution from mold or noxious fumes from house hold
cleaners and paints. Other indoor environmental factors associated with asthma
include nitrogen oxide from gas stoves. In fact people who cook with gas are
more likely to have symptoms such as wheezing, breathlessness, asthma attacks,
and hay fever. Smoggy conditions release the destructive ingredient known as
ozone, causing cough, shortness of breath and even chest pain. Weather change has also been known to
stimulate asthma attacks. Cold air leads to airway congestion,
bronchonstriction (airway constriction). In some populations, humidity causes
breathing difficulties as well.
Environmental factors: Allergic reactions and asthma symptoms are often
the result of indoor air pollution from mold or noxious fumes from house hold
cleaners and paints. Other indoor environmental factors associated with asthma
include nitrogen oxide from gas stoves. In fact people who cook with gas are
more likely to have symptoms such as wheezing, breathlessness, asthma attacks,
and hay fever. Smoggy conditions release the destructive ingredient known as
ozone, causing cough, shortness of breath and even chest pain. Weather change has also been known to
stimulate asthma attacks. Cold air leads to airway congestion,
bronchonstriction (airway constriction). In some populations, humidity causes
breathing difficulties as well.
·
Obesity: Overweight adults- those with a body mass index (BMI) between 25 and
30 are 30% more likely to have asthma compared to adults who are not over
weight. Obese adults-those with a BMI of 30 or greater have twice the risk of
asthma. According to some researchers, the risk may be greater for non-
allergic asthma than allergic asthma.
Obesity: Overweight adults- those with a body mass index (BMI) between 25 and
30 are 30% more likely to have asthma compared to adults who are not over
weight. Obese adults-those with a BMI of 30 or greater have twice the risk of
asthma. According to some researchers, the risk may be greater for non-
allergic asthma than allergic asthma.
·
Genes: Genes linked to asthma play roles in managing the immune system and
inflammation. The centers for disease control (USA) says that having a parent
with asthma increases a person risk by three to six times. Genetics may also be
interacting with environmental factors. For example, exposure to the bacteria
product endotoxin and having a genetic trait CD14 (single nucleotide
polymorphism (SNP) c-is9T) have remained a well replicated example of a gene-
environment interaction that is associated with asthma.
Genes: Genes linked to asthma play roles in managing the immune system and
inflammation. The centers for disease control (USA) says that having a parent
with asthma increases a person risk by three to six times. Genetics may also be
interacting with environmental factors. For example, exposure to the bacteria
product endotoxin and having a genetic trait CD14 (single nucleotide
polymorphism (SNP) c-is9T) have remained a well replicated example of a gene-
environment interaction that is associated with asthma.
