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What Is Asthma?

Understanding asthma: Symptoms, types and how to manage it 

Asthma is a common, chronic condition that affects your airways - the tubes that carry air in and out of your lungs. When you have asthma, these airways can become inflamed and narrowed, making it hard to breathe. 

Asthma often starts in childhood but can begin at any age. Symptoms like wheezing, coughing or chest tightness may be mild or severe, and they may happen often or only once in a while. 

While asthma can be serious, most people can manage it with the right care. At Banner Health, our experienced and compassionate team is here to help you breathe easier and live well. 

What are the symptoms of asthma? 

Asthma symptoms occur when your airways tighten or swell and produce extra mucus. Common signs include: 

  • Wheezing (a whistling sound when you breathe) 
  • Coughing, especially at night or early morning 
  • Shortness of breath 
  • Chest tightness, pressure or pain 
  • A fast heartbeat 
  • Throat irritation 

Not everyone with asthma experiences the same symptoms. You may have just one or two symptoms - or all of them. They can also vary in severity from one asthma attack to the next. 

What is an asthma attack? 

An asthma attack happens when your airways narrow suddenly, making it hard to breathe. This is caused by: 

  • Bronchospasm – tightening of the airway muscles 
  • Inflammation – swelling of the airway lining 
  • Mucus – increased mucus production that clogs airways 

Mild asthma attacks are more common and usually respond well to quick-relief inhalers. Severe attacks are less common but can be life-threatening and may require emergency care. 

If you have asthma, it’s important to treat even mild symptoms early to prevent more serious attacks. 

How is asthma classified? 

Asthma is classified by how often and how severely symptoms occur: 

  • Intermittent asthma – Symptoms less than twice a week; nighttime symptoms fewer than two times a month 
  • Mild persistent asthma – Symptoms two or more days a week; nighttime symptoms three to four times a month 
  • Moderate persistent asthma – Daily symptoms and nighttime symptoms once or more each week 
  • Severe persistent asthma – Symptoms throughout the day and every night 

Your doctor will determine your classification and create a personalized asthma management plan. 

Types of asthma 

Asthma can be triggered by different things and affect people in different ways. Common types include: 

Childhood asthma 

Asthma that begins in childhood is often linked to allergies and may improve with age. Pediatric asthma care focuses on helping children manage symptoms and avoid triggers. 

Allergic asthma 

More than half of people with asthma have allergies that trigger symptoms. Common allergens include: 

  • Pollen 
  • Dust mites 
  • Mold 
  • Pet dander 

Managing allergic asthma involves treating both your allergies and your asthma. 

Non-allergic asthma 

This type isn’t triggered by allergens but can be caused by: 

  • Cold or dry air 
  • Air pollution 
  • Viral infections 
  • Strong smells or smoke 
  • Emotional stress or anxiety 

Non-allergic asthma often develops in adults and can be more severe. 

Nocturnal asthma 

This type causes worse symptoms at night, affecting sleep quality. Triggers may include indoor allergens, body position or natural changes in hormones while you sleep. 

Exercise-induced bronchoconstriction 

This happens when exercise triggers airway tightening. It affects about 90% of people with asthma and can also happen in people without asthma. Symptoms may appear during or shortly after physical activity. 

Occupational asthma 

Exposure to substances at work - such as chemicals, dust, or fumes - can lead to asthma. It’s more common in jobs like baking, farming, manufacturing and cleaning. 

Cough-variant asthma 

This type causes a chronic dry cough - often without other typical asthma symptoms. It may be a sign of early asthma and should be evaluated if it gets worse or occurs with exercise or cold weather. 

Living well with asthma 

Asthma may not go away, but with the right treatment plan, most people can live full and active lives.  

Treatment may include: 

  • Daily control medications 
  • Quick-relief inhalers for symptoms or attacks 
  • Lifestyle changes to avoid triggers 
  • Regular check-ins with your doctor 

At Banner Health, we tailor asthma care to your needs and help you stay ahead of symptoms. Whether you’re newly diagnosed or looking for better control, we’re here to support your long-term health. 

Learn more about managing asthma at Banner Health.