Asthma remains a major global health challenge, responsible for approximately 1,000 deaths every day worldwide, according to medical experts marking World Asthma Day 2026.
The annual awareness day, observed on the first Tuesday of May, focuses this year on improving disease control and ensuring equal access to treatment. Health professionals stress that while asthma is manageable, gaps in care and prevention continue to put millions at risk.
A growing global burden
Asthma affects an estimated 300 million people worldwide, with prevalence continuing to rise—particularly among children. Beyond its health impact, the condition significantly reduces quality of life and places increasing pressure on healthcare systems.
Despite advances in treatment, access to essential medications is still limited in many parts of the world. In particular, inhaled corticosteroids—considered a cornerstone of asthma management—are not universally available.
Smoking and lifestyle risks
Experts warn that both active and passive smoking play a critical role in the onset and worsening of asthma. Smoking is linked to poorer disease control, more frequent flare-ups and increased reliance on medication.
It is also associated with higher levels of anxiety and depression, as well as a faster decline in lung function. Public smoking bans, however, have been shown to reduce asthma exacerbations by around 10%.
Environmental pressures
Air pollution and environmental factors are also key contributors. Exposure to pollutants, fine particles and exhaust fumes can worsen symptoms, while climate change is increasing exposure to allergens such as pollen.
Additional factors, including dust transport from desert regions and higher humidity levels, can further strain respiratory health and lead to more hospital admissions.
Prevention and treatment access
Preventing flare-ups remains a central goal in asthma care. Viral infections are a major trigger, making vaccination an important protective measure. Immunization against influenza, COVID-19, RSV and pneumococcal disease can help reduce complications.
Specialists emphasize that asthma can be effectively controlled with proper treatment, particularly through a combination of inhaled corticosteroids and bronchodilators. However, financial barriers, geographic limitations and lack of awareness often delay or interrupt care.
