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 condition that affects 1 in 13 Americans. 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 …
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 · Asthma is a chronic condition that makes it harder to breathe. Learn how asthma affects the lungs and about common symptoms with this animated video. Asthma can be managed. If you have asthma, talk to a healthcare provider about making an asthma action plan. Other conditions can cause these symptoms. But in asthma, the symptoms often follow a ...
NIH Statement on World Asthma Day 2022: Toward improved …
2022年5月3日 · A NIAID-funded study found that asthma does not increase the risk of becoming infected with SARS-CoV-2, the virus that causes COVID-19. This finding came from a six-month household survey of more than 4,000 children and adults …
Asthma Research - NHLBI, NIH
2024年6月26日 · The branch's Asthma Program focuses on the contributions and mechanisms of external triggers, as well as the genetic and risk factors, that can lead to abnormal lung inflammation and cause shortness of breath in patients with asthma. In addition, the Asthma Program studies the development of novel therapeutic approaches for clinical management ...
Asthma - Managing Asthma - NHLBI, NIH
2024年4月17日 · Know your asthma. Educate yourself so you can understand the purpose of your medicines and how to prevent symptoms . Learn how to recognize asthma attacks early and when to seek medical attention. Monitor your air flow. As part of your asthma action plan, your provider may show you how to track your asthma using a peak flow meter. Keep a record ...
Respiratory Failure - Causes and Risk Factors | NHLBI, NIH
2022年3月24日 · Conditions that make it difficult for you to breathe out: Asthma causes your airways to narrow, while COPD can cause mucus to build up and narrow your airways. Both can make it hard for you to breathe out. Lung collapse: When no air can enter your lungs, your lungs may collapse. This can happen in certain situations, such as when the muscles ...
Asthma is a chronic condition that affects the airways in the lungs. Black people in the United States have a greater asthma burden than others. Here’s what to know—and what to do to manage the condition if you have it. IS ASTHMA COMMON AMONG BLACK PEOPLE IN THE UNITED STATES? Black people have the highest rates of asthma of any U.S. racial
Asthma doesn’t go away and it can’t be cured. Once you develop asthma, you’re likely to have it for a lifetime. Even when you have no symptoms—even when you’re feeling just fine—the asthma is still there and can flare up at any time. • Asthma can be managed. Like diabetes and high blood pressure, asthma takes ongoing monitoring and