What’s an Asthma | Causes & Types of Asthma | 2023

Over 25M Americans suffer from asthma. It’s a long-term illness that produces inflammation in your airways, making breathing difficult. Asthma doesn’t have a cure. Avoiding triggers, using medicines to prevent symptoms, and being ready to treat asthma attacks if they occur are the best ways to manage asthma. 

Coughing, wheezing, chest tightness, and shortness are all symptoms of asthma, which is a long-term illness. These symptoms vary in severity from one individual to the next. Most people’s asthma can be managed adequately for the most part, while other people may experience more chronic symptoms.

Asthma symptoms can sometimes become worse over time or unexpectedly. Although doctors occasionally use the phrase “exacerbation,” this is described as a “asthma attack.” Severe episodes may necessitate hospitalization and, in rare cases, can be fatal.

What’s Asthma?

Asthma is a chronic lung condition. It irritates and narrows your airways, making it difficult to breathe. Asthma that is severe might make it difficult to speak or move about. It’s possible your doctor will refer to it as a chronic respiratory condition.

Asthma is also known as “bronchial asthma” by certain individuals. Asthma is a dangerous condition that affects around 25 million Americans and results in nearly 2 million trips to the emergency department each year.

What is Asthma and What is the main Cause of Asthma

You may live a happy life with the right therapy. You may have to frequent the ER or remain in the hospital if you don’t have it, which can have an impact on your everyday life. Asthma is a lung illness. Asthma is one of the most frequent chronic disorders affecting children, but it may also affect adults.

At night or early in the morning, asthma symptoms include wheezing, shortness, chest tightness, and coughing. If you have asthma, you will experience symptoms all of the time, but asthma attacks will only occur when your lungs are inflamed.

Although we don’t know everything that causes asthma, the condition has been linked to genetic, environmental, and occupational factors. You are more likely to get asthma if someone in your close family does. Atopy, or a genetic predisposition to develop an allergic illness, can have a significant role in the development of allergic asthma.

All asthma, however, is not allergic asthma. Environmental factors such as mold or moisture, certain allergens such as dust mites, and secondhand cigarette smoke have all been related to the development of asthma. 

Asthma can also be caused by air pollution or a viral lung infection. Occupational asthma arises when someone who has never had asthma acquires it as a result of anything they are exposed to at work.

This can occur if you acquire an allergy to anything at work, such as mold, or if you are repeatedly exposed to irritants at work, such as wood dust or chemicals, at lower levels or all at once at greater levels.

Attack of an Asthma

The muscles around your airways relax when you breathe regularly, allowing air to flow freely.

Three things can occur during an asthma attack:


Muscles around the airways tighten (tighten). The airways get narrowed as they constrict. Constricted airways prevent air from moving freely.


The linings of the airways thicken and swell. Swollen airways reduce the amount of air that enters and leaves the lungs.

Increased Mucus Production

Your body produces more mucus during an assault. Airways are clogged by this thick mucus.

Who is Afflicted With Asthma?

More than 3.8 million Canadians suffer from asthma, including 850,000 children under the age of 14. Asthma is the third most frequent chronic condition in Canada. Every day, over 300 Canadians are diagnosed with asthma, and around 250 Canadians die each year as a result of an asthma attack. 

Asthma is a contagious disease. Although the exact etiology of asthma is uncertain, studies have shown that it can be caused by both inherited and environmental causes.

Just because one of your parents has asthma (or an allergy), doesn’t indicate you will. It’s more probable that you’ll get asthma and/or allergies if one or both of your parents have them. The reason behind this is unknown to researchers.


What is Asthma and What is the main Cause of Asthma

Coughing and wheezing are frequent symptoms. You may also feel short of breath and have a tightening in your chest. The severity of symptoms varies from person to person and from time to time within the same person. Symptoms might linger for an hour or more, or they can remain for days or weeks if not addressed.

Asthma is Caused by a Variety of Factors

Asthma has yet to be definitively linked to a single cause. Researchers have discovered various risk factors that might contribute to the development of asthma.

1. Genealogy & Family History

Children of asthmatic mothers are three times more likely to have asthma, while children of asthmatic fathers are 2.5 times more likely to develop asthma.

To far, more than 30 genes have been associated to asthma, with gene-gene interactions, gene-environment interactions, and epigenetic alterations all playing a role. Factors in therapy response are also influenced by genetic differences.

2. Allergies

People with particular types of allergies, such as those that affect the eyes and nose, are more prone to develop asthma. Not everyone with allergies will develop asthma, and not everyone with asthma will be impacted by allergies.

Respiratory allergies and asthma are linked to immunoglobulin E (IgE), an antibody produced by the immune system in reaction to allergens. IgE induces allergic responses in the eyes, nose, throat, lungs, and skin to protect the body.

3. Birth Before Due Date

Children who are born before the 37th week of pregnancy have a higher chance of acquiring asthma later in life.

4. Infections of the Lung

If a baby or small kid has experienced certain lung infections at a young age, they may be at risk for having asthma later in life.

5. Occupational Risks

In the workplace, there are over 200 chemicals that might induce asthma, including gases, dust particles, chemical fumes, and vapors. Occupational asthma is a common cause of adult-onset asthma.

6. Hormones

Adult-onset asthma can strike women before, during, or after menopause.

7. Air Quality in The Environment

Asthma is connected to smoking, exhaust fumes, and airborne particulate matter.

8. Obesity

Extra weight around the chest may compress the lungs, making inhaling more difficult. Inflammatory chemicals produced by fat tissue may impact the lungs and asthma.


Asthma can strike for a variety of causes and in a variety of ways, but the triggers are frequently the same. Pollutants in the air, viruses, pet dander, mold, and cigarette smoke are just a few examples.

Some typical asthma kinds are listed in the sections below:

1. Asthma in Children

In children, asthma is the most frequent chronic illness. It can strike at any age, although children are significantly more likely than adults to get it. Asthma was most common among children aged 5 to 14 years old in 2017.

9.7% of persons in this age group Trusted Source were afflicted by the ailment. 4.4% of children aged 0–4 years were also impacted. Asthma struck 7.7% of those aged 18 and above in the same year. Childhood asthma can be triggered by a variety of factors, according to the American Lung Association.

What is Asthma and What is the main Cause of Asthma
  • Colds and bronchitis
  • Secondhand tobacco smoke, as well as cigarette smoke
  • Allergens
  • Interior and outdoor air pollution, such as ozone and particle pollution
  • Chilly air exposure
  • Temperature fluctuations
  • Excitement
  • Stress
  • Exercise

If a kid develops asthma, it is critical to get medical help immediately since the condition can be fatal. A doctor can help you figure out the best strategies to deal with the problem.

Asthma in children can sometimes become better as they grow older. It is, nevertheless, a lifelong condition for many people.

2. Asthma that Develops later in Life

Adults can get asthma at any age. Adults are more likely to experience chronic symptoms than children, according to a 2013 research.

Adulthood asthma risk is influenced by a variety of variables, including:

  • A chest infection
  • Asthma and allergen exposure
  • Hormones
  • Obesity
  • Stress
  • Smoking

3. Occupational

Occupational asthma is caused by an occupational allergen or irritation.

Allergens at the following workplaces may induce asthma in those who have a sensitivity or allergy to them:

  • Bakeries, flour mills, and cooking establishments
  • Pet stores, zoos, and laboratories with animals
  • Agribusinesses, farms, and other agricultural environments

Irritators can provoke asthma symptoms in the following occupations:

  • Automobile maintenance and production
  • Metalwork and engineering
  • Carpentry (woodwork)
  • Industries of electronics and assembly
  • Salons of hairdressers
  • Swimming pools that may be used inside

Risk include people who:

  • smoke
  • suffer from rhinitis caused by allergies
  • suffer from asthma or allergies to the environment

The return of childhood asthma or the emergence of adult-onset asthma might be triggered by one’s work environment.

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