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...Many people spend most of their time indoors. Surprisingly, in some neighborhoods, indoor air has more pollutants than outdoor air. The air we breathe in our homes, schools, and workplaces...

...Allergens are common triggers of asthma symptoms for children and adults. Asthma triggered by allergies is called allergic asthma. Common allergens include: Allergens that cause a reaction for you may...

...Asthma is an ongoing (chronic) lung condition that causes airway inflammation. This leads to narrow airways and breathing problems. It also makes the airways more sensitive to allergens and other...

...Asthma is a common chronic airway condition that leads to respiratory symptoms. It involves an immune response called airway inflammation. This leads to airway narrowing and swelling, both of which...

...Asthma varies in how often you have symptoms and how intense those symptoms are. This is referred to as your “asthma severity.” Your doctor will assess your asthma severity as...

...Aspirin-induced asthma is a type of asthma triggered by aspirin. It is also triggered by other non-steroidal anti-inflammatory drugs (NSAIDs) like ibuprofen. Aspirin-induced asthma is also called aspirin-exacerbated respiratory disease...

...Anyone can develop asthma at any age. It is most common for people to start showing symptoms during childhood. But people can also be diagnosed with asthma for the first...

...Nighttime or nocturnal asthma is a type of asthma where symptoms get worse at night. It is a very common type of asthma. About 75 percent of people with asthma...

...Occupational asthma is a type of asthma caused or worsened by exposures in the workplace. The most common workplace triggers are wood dust, grain dust, fungi, and chemicals. Diagnosing workplace...

...Cough variant asthma (CVA) is a type of asthma where the only symptom is a dry cough. People with other forms of asthma have a cough that produces mucus. However...

...Exercise-induced asthma can occur in anyone, whether or not they have asthma. The condition happens in high school athletes, elite athletes, and people who enjoy recreational sports. If you cough...

...An asthma attack is a sudden worsening of asthma symptoms. It may also be called an “episode” or “exacerbation.” Mild asthma attacks can be treated at home. Severe asthma attacks...

...Asthma is sometimes divided into 2 types depending on whether you have allergies. These types are allergic (or extrinsic) asthma and nonallergic (or intrinsic) asthma. In allergic asthma, symptoms are...

...Asthma is a complex condition that affects people in different ways. Certain patterns of body processes and symptoms help us define different types of asthma. All types of asthma show...

...Asthma is a chronic (long-term) condition that affects the airways. It causes wheezing and difficulty breathing. Many people with asthma experience sudden intense symptoms. These are called asthma attacks. They...

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