https://www.healthcentral.com/article/heres-why-humidity-and-cold-air-trigger-asthma
AsthmaLiving With

Why Humidity and Cold Air Trigger Asthma

Senior woman using inhaler outdoors.
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    John Bottrell

    John Bottrell

    John Bottrell is a registered Respiratory Therapist. He wrote for HealthCentral as a health professional for Asthma and Chronic Obstructive Pulmonary Disease (COPD).