A research conducted in the United States concluded that
children who lived with dogs or cats in their first year of life had a lower
risk of allergies. This would be as a result of early exposure to allergens,
which strengthen the immune system.
The study also indicated that this positive effect occurred
in children, but not girls, a finding that left investigators baffled. At the
same time revealed that exposure to pets at any time after the first year of
life had no significant effect on the risk of allergy, emphasizing the
importance of the time variable in preventive issues.
Although reports have been made regarding this issue, this
is the first study to evaluate the consequences of living with pets following
the health profile of the analysis group to 18 years.
In reaching this age, the researchers took blood samples and
examined for certain proteins the immune system (called antibodies) that fight
allergens from cats and dogs. Adolescents who lived with a cat during their
first year of life were 48% lower risk of allergy to cats than their peers, and
adolescents who lived with a dog had a 50% lower risk of allergy.
In the exceptional case of girls, experts are not encouraged
to draw firm conclusions, but suggested that perhaps your immune system fails
to develop in the same way that children, perhaps because they interact
differently with pets.
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