Asthma: 6 Less Common Causes That Can Trigger Attacks

Allergies aren’t the only factors that can cause or worsen asthma symptoms. Premenstrual asthma, exercise-induced asthma, asthma triggered by strong emotions or medications… Learn more about other things to watch out for to prevent attacks.   According to World Health Organization estimates, approximately 247 million people worldwide suffer from asthma. Many also have allergies to …

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