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Asthma is a long-term condition that can be managed but not cured.

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It starts with a go or a whiz. Soon your chest feels tight, your breathing speeds up.

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These are common symptoms of an asthma attack.

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Around the world, more than 300 million people suffer from asthma and 250,000 people die from it each year.

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But why people get asthma and how can this disease be deadly?

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Asthma affects the respiratory system, particularly the smaller airways, such as the bronchi and the bronchioli.

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These airways have an inner lining called the mucosa that's surrounded by a layer of a small muscle.

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In people with asthma, the airways are chronically inflamed, which can make them hyper-responsible to certain triggers.

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Some of many asthma triggers include tobacco smoke, pollen, dust, fragrances, exercise,

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cool weather, stress and even the common cold.

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When people with asthma are exposed to these triggers, an asthma attack or exacerbation

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can occur.

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But how exactly do such everyday factors lead to an asthma attack?

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If an asthmatic is exposed to trigger, the smooth rings of muscle that circulate the

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small airways in the lungs contract and become narrow.

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Simultaneously, the trigger worsens inflammation, causing the mucosal lining to become more

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swollen and secrete more mucus.

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Under normal conditions, the body uses the mucus to trap and clear particles, like pollen

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or dust, but during an asthma attack, it blocks the narrowed airways, making it even harder

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to breathe.

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this effect lead to symptoms of asthma smooth muscle constriction results in the feeling of

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chest tightness excess mucus and increase of inflammation can cause cough and the wheezing

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noise that happens because the airway constricts air whistles and passes through the narrowed space

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these symptoms may make a person feel like they are running out of air during an asthma attack

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the inflammation can make it harder to exhale and inhale. Over time, this leads to an excess of air

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in lungs. A phenomenon known as hyperinflation, the dropping of air inside the lungs forces the

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body to work harder to move air in and out of them. Over time, this can lead to reduced oxygen

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delivery to the body's organs and tissues. Sometimes, it can lead to death from lack of

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oxygen. So how do we prevent these fatal attacks in people with asthma? One way is to reduce the

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presence of triggers unfortunately the world is at a predictable place that can't always be controlled

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this is where inhalers come in this medication helps asthmatics to prevent their asthma symptoms

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inhalers transport medication along the affected areas to treat the problem that at its source

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they come into form ones which treat symptoms immediately and contain beta agonist relaxed

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constricted muscles allowing the airways to widen so more air can travel into and out of the lung.

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The other form of inhalers which treats asthma symptoms over the long term contain corticosteroids.

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Corticosteroids reduce airway sensibility and inflammation so asthma can be kept under control.

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They are also crucial in preventing long-term damage from chronic inflammation.

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Inhalers are known to be very effective although we've come a long way improving we still don't

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know its exact cause. Currently, we believe that a combination of genetic and environmental

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factors play a role in potential action during early childhood. This may be due to exposure

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to additional pollutants and environmental irritants. As our understanding of asthma improves,

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we can continue to find better ways to keep people's airways happy and healthy.