Studies suggests that female sex hormones may be linked to asthma

Researchers at Edinburgh University found out that fluctuations in female sex hormones could be linked to asthma or allergies.
The study says that irregular menstruation cycle or starting periods before the age of 11 could possibly be associated with a higher rate of asthma.

This study shows that why is this disease majorly associated with girls, in comparison to boys. Read the full story here.