The cause of asthma is not fully understood, but it is thought to be a combination of genetic and environmental factors. Common triggers include house dust mites, animal fur, pollen, tobacco smoke, cold air and chest infections
When the bronchi are irritated, they become narrow and the muscles around them tighten, which can increase the production of sticky mucus, or phlegm. This makes it difficult for sufferers to breathe and causes wheezing and coughing. It can also make a person's chest feel tight. The severity of the symptoms of asthma differs from person to person. The narrowing of the airways is usually reversible - occurring naturally, or through the use of medicines
Register Now to Continue Reading
Thank you for visiting Children & Young People Now and making use of our archive of more than 60,000 expert features, topics hubs, case studies and policy updates. Why not register today and enjoy the following great benefits:
What's Included
-
Free access to 4 subscriber-only articles per month
-
Email newsletter providing advice and guidance across the sector
Already have an account? Sign in here
