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  2. Nearly 1 in 10 Americans have asthma. Here's what causes it.

    www.aol.com/nearly-1-10-americans-asthma...

    Asthma is one of the most common lung diseases in the world, affecting some 262 million people worldwide and causing more than 450,000 deaths annually, per the World Health Organization.While ...

  3. Asthma - Wikipedia

    en.wikipedia.org/wiki/Asthma

    Asthma phenotyping and endotyping has emerged as a novel approach to asthma classification inspired by precision medicine which separates the clinical presentations of asthma, or asthma phenotypes, from their underlying causes, or asthma endotypes. The best-supported endotypic distinction is the type 2-high/type 2-low distinction.

  4. Why your asthma is worse in the winter — and how to ... - AOL

    www.aol.com/lifestyle/why-asthma-worse-winter...

    And while asthma can be triggered year-round by allergens such as pets, dust or pollen, flare-ups can also come from non-allergic triggers such as the frigid winter air.

  5. Allergy - Wikipedia

    en.wikipedia.org/wiki/Allergy

    The prevalence of asthma increased 75% from 1980 to 1994. Asthma prevalence is 39% higher in African Americans than in Europeans. [151] 5.7 million (about 9.4%). In six- and seven-year-olds asthma increased from 18.4% to 20.9% over five years, during the same time the rate decreased from 31% to 24.7% in 13- to 14-year-olds. Atopic eczema

  6. Pathophysiology of asthma - Wikipedia

    en.wikipedia.org/wiki/Pathophysiology_of_asthma

    However, asthma is rarely the only symptom, and not all people with food or other allergies have asthma [17] Sulfite sensitivity Asthma can occur in reaction to ingestion or inhalation of sulfites, which are added to foods and wine as preservatives. [18] Salicylate sensitivity Salicylates can trigger asthma in sensitive individuals. Salicylates ...

  7. Why your asthma is worse in the winter - AOL

    www.aol.com/news/why-asthma-is-worse-in-winter...

    You’re not imagining things if your asthma feels worse in the winter. Experts explain why — and how to handle asthma symptoms.