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

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

    (Photo: Getty Images) You’re not imagining things if it feels like your asthma is worse in the winter. You’re also not alone, as more than 25 million Americans suffer from asthma.

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

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

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

  4. Allergies in children - Wikipedia

    en.wikipedia.org/wiki/Allergies_in_children

    Symptoms of indoor allergies can occur year-round but tend to be more troublesome during the winter months when children are inside more often. [18] However, outdoor allergies, or seasonal allergies, normally change with the season. [19] The potential symptoms of a food allergy include: [10] [5] Tingling/itching in the mouth

  5. Smog - Wikipedia

    en.wikipedia.org/wiki/Smog

    During the summer season when the temperatures are warmer and there is more sunlight present, photochemical smog is the dominant type of smog formation. During the winter months when the temperatures are colder, and atmospheric inversions are common, there is an increase in coal and other fossil fuel usage to heat homes and buildings.

  6. Epidemiology of asthma - Wikipedia

    en.wikipedia.org/wiki/Epidemiology_of_asthma

    In 2000-2001 asthma prevalence was monitored at 6.5%; by 2010-2011 a 4.3% increase was shown, with asthma prevalence totaling 10.8% of Canada's population. [29] Furthermore, asthma prevalence varies among the provinces of Canada; the highest prevalence is Ontario at 12.1%, and the lowest is Nunavut at 3.8%. [29]

  7. 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 ...

  8. Thunderstorm - Wikipedia

    en.wikipedia.org/wiki/Thunderstorm

    Thunderstorm asthma is the triggering of an asthma attack by environmental conditions directly caused by a local thunderstorm. During a thunderstorm, pollen grains can absorb moisture and then burst into much smaller fragments with these fragments being easily dispersed by wind.

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