Everyday life is filled with the allergens that can kick off an asthma attack. Some of the more common factors or triggers are described here:

• Allergic Reactions
  pollens, feathers, molds, animals, some foods, house dust, common cold, influenza, pneumonia

• Emotional Stress and Excitement
  fear, crying, and laughing

• Vigorous Exercise
  especially when it leads to overexertion or in cold weather

• Cold Air
  Cold air, wind, rain, and sudden changes in the weather

• Occupational Dusts and Vapors
  plastics, grains, metals, wood

• Air Pollution
  cigarette smoke, grains, ozone, sulfur dioxide, auto exhaust

• Sleep (nocturnal asthma)

• Household Products
  paint, cleaners, sprays, drugs, aspirin