ASTHMA TRIGGERS ARE THINGS THAT SET OFF OR WORSEN ASTHMA SYMPTOMS1
Dust mites thrive in warm, humid
environments such as bedding, upholstered
furniture and carpeting.
Heavy rain (cold and wet weather),
hot weather and/or air conditioning can
worsen asthma symptoms.
Cold and flu2,6
Illnesses such as a cold and the flu
can aggravate asthma.
Strong emotions such as anxiety, anger, depression and even laughter can trigger asthma symptoms.
Heavy traffic fumes2,6–8
Haze particles can affect the heart and lungs, especially those with asthma.
Citrus fruits can trigger asthma symptoms if
you’re allergic or sensitive to them.
Tobacco and incense smoke2,6,9
Tobacco smoke is unhealthy for everyone, especially people with asthma. Incense smoke can also trigger asthma symptoms.
Allergies to furry pets (saliva, dander, urine)
can set off asthma symptoms.
Other triggers can include perfumes, flowers/pollen, alcohol, heartburn, medications (like aspirin), chemical exposure at work, household pests (like cockroaches, flies, moths), bathing, fatigue, insufficient sleep, crowded places and overeating.2
- National Heart, Lung, and Blood Institute. Causes and triggers, 2022. Available at: https://www.nhlbi.nih.gov/health/asthma/causes. Accessed November 2022.
- See KC, et al. Singapore Med J. 2016;57(10):561–565.
- CDC. You can control your asthma, 2022. Available at: https://www.cdc.gov/nceh/features/asthmaawareness/index.html. Accessed November 2022.
- AAAAI. Asthma and exercise, 2020. Available at: https://www.aaaai.org/tools-for-the-public/conditions-library/asthma/asthma-and-exercise. Accessed February 2023.
- AAAAI. Indoor allergens, 2020. Available at: https://www.aaaai.org/tools-for-the-public/conditions-library/allergies/indoor-allergens-ttr. Accessed November 2022.
- GINA. Global strategy for asthma management and prevention, 2022. Available at: https://ginasthma.org/gina-reports/. Accessed November 2022.
- Ministry of Health Singapore. FAQs on haze health advisory, 2022. Available at: https://www.moh.gov.sg/resources-statistics/educational-resources/haze/faqs-on-haze-health-advisory. Accessed November 2022.
- National Environment Agency. Haze – Singapore, 2022. Available at: https://www.haze.gov.sg/. Accessed November 2022.
- CDC. Common asthma triggers, 2020. Available at: https://www.cdc.gov/asthma/triggers.html. Accessed November 2022.
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NP-SG-ASU-WCNT-230001. April 2023.