SHARED FROM SCIENTIFIC AMERICAN
Rainfall is known to clear the air of pollen and make breathing easier for those with asthma. But sometimes heavy precipitation can do the contrary: growing evidence shows that rain and thunderstorms can exacerbate asthma attacks. A thunderstorm in 2016, for instance, sent more than 8,500 individuals to the hospital for asthma-related distress in what is known as the Melbourne epidemic thunderstorm asthma event.
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