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Boys 'grow out of child asthma' |
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Boys are more likely than girls to grow out of childhood asthma when they hit their teenage years, research suggests.
In the American Journal of Respiratory and Critical Care Medicine, scientists say it points to an unknown mechanism behind the condition's development.
The Harvard Medical School experts tested more than 1,000 children's lung function over an average of nine years. Asthma UK experts said sex hormones might play a role in the symptoms of asthma and its severity. BBC News |
