Asthma - Causes and Triggers | NHLBI, NIH
2024年4月17日 · The exact causes for developing asthma are unknown and may be different from person to person. However, asthma can also occur when the body’s natural defenses against germs and sickness react strongly to a new substance in the lungs. Asthma usually starts during childhood when the body’s defense system is still taking shape.
Asthma - What Is Asthma? - NHLBI, NIH
2024年4月17日 · Asthma is a chronic (long-term) condition that affects the airways in the lungs. The airways are tubes that carry air in and out of your lungs. If you have asthma, your airways can become inflamed and narrowed at times. This makes it harder for air to flow out of your airways when you breathe out. About 1 in 13 people in the United States have ...
Asthma - Asthma Attack - NHLBI, NIH
2024年4月17日 · During an asthma attack, symptoms get much worse. Attacks can come on quickly or gradually and may be life-threatening. People with asthma that is difficult to treat may get asthma attacks more often. Airway in the lungs narrowing from an asthma attack. A normal airway is wide, compared with the narrowed, inflamed airway typical of an asthma ...
Asthma - Symptoms - NHLBI, NIH
2024年4月17日 · Español. Symptoms of asthma may include: Wheezing, which is a whistling sound when you breathe out. Coughing, especially at night or early morning. Shortness of breath. Chest tightness. How Asthma Affects Breathing. If playback doesn't begin shortly, try restarting your device. From a US national research authority.
NIH Statement on World Asthma Day 2022: Toward improved …
May 3, 2022, 9:00 AM EDT. Today on World Asthma Day, the National Institutes of Health reaffirms its commitment to biomedical research aimed at preventing the onset of asthma, understanding its underlying causes, and improving the treatment of it. This chronic airway disease, which is characterized by periodic worsening of inflammation that can ...
Respiratory Failure - Causes and Risk Factors | NHLBI, NIH
2022年3月24日 · Respiratory failure can be caused by several factors. Conditions that make it difficult to breathe in and get air into your lungs: Examples include weakness following a stroke, collapsed airways, and food getting stuck in and blocking your windpipe. Conditions that make it difficult for you to breathe out: Asthma causes your airways to narrow ...
Asthma Research - NHLBI, NIH
2024年6月26日 · For more than 20 years, the NHLBI Severe Asthma Research Program has transformed our knowledge of severe asthma. Research supported through the program has identified sex, race, secondhand smoke, pneumonia, and obesity as key risk factors for asthma. Studies have also found genetic variations linked to severe asthma and biomarkers for asthma ...
Asthma - Treatment and Action Plan | NHLBI, NIH
2024年4月17日 · An asthma action plan is a written treatment plan that describes the following: How to identify allergens or triggers to avoid. How to know if you are having an asthma attack and what to do. Which medicines to take and when to take them. When to call your provider or go to the emergency room.
BASIC FACTS ABOUT ASTHMA. • Asthma is a lung disease. It’s a physical and medical problem that needs treatment. It’s not something that you imagined or made up. Don’t let anyone tell you your asthma is just in your head. It’s in your lungs, and it’s real. • Asthma is serious. A person can die during an asthma attack.
Asthma - Managing Asthma - NHLBI, NIH
2024年4月17日 · Make healthy lifestyle changes. Your healthcare provider may recommend healthy lifestyle changes to help keep asthma symptoms in check: Aim for a healthy weight. Having overweight or obesity can make asthma harder to manage. Talk to your provider about programs that can help. Even a small weight loss can help symptoms.