Asthma
Asthma is a chronic, inflammatory lung disease affecting more than 22 million people in the United States. Asthma symptoms may appear at any time in life, but often begin in childhood. The most common form is triggered by allergens, such as dust mites or pollen. Nonallergic asthma is triggered by factors such as anxiety, exercise, cold air, and other irritants. Symptoms include coughing and wheezing, chest tightness, and difficulty breathing.
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This fact sheet provides basic information about asthma, summarizes scientific research on the effectiveness and safety of complementary health practices for asthma, and suggests sources for additional information.
For Consumers
General Information
Research Spotlights
Ongoing Medical Studies
- Find Active Medical Research Studies on Asthma (ClinicalTrials.gov)
For Health Professionals
NCCAM Clinical Digest
Clinical Practice Guidelines
Scientific Literature
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Systematic Reviews/Reviews/Meta-analysis (PubMed®)
- Randomized Controlled Trials (PubMed®)
