Young woman using an asthma inhaler, May 2000.

Hills, Jennie

 
Young woman using an asthma inhaler, May 2000.
4 0 c m
 
34cm
actual image size: 26cm x 32cm

Description

Asthma is a respiratory disorder characterised by breathlesnes, coughing and wheezing, where the bronchial pasages, which carry air to the lungs, become constricted. It may be brought on by a variety of stimuli, including an allergic reaction to a substance, as a result of respiratory infection, or it may be caused by exertion, certain drugs, or strong emotion. Anti-asthma drugs are divided into preventers, which are designed to protect the sufferer's airways, making an attack les likely to occur, and relievers, which alleviate the symptoms when an attack does actually occur. Both are commonly administered via aerosol inhalers. It is estimated that there are 150 million asthma sufferers worldwide, with the prevalence of the condition increasing.

© Science Museum / Science & Society Picture Library

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