MICHAEL DONNE / SCIENCE PHOTO LIBRARY MICHAEL DONNE / SCIENCE PHOTO LIBRARY
Asthmatic cyclist using an inhaler to treat an asthma attack. Asthma is a respiratory condition in which the small airways (bronchioles) of the lung constrict, making it difficult to breathe. This causes wheezing, coughing and breathlessness, and can be dangerous. The inhaler releases a bronchodilator drug that is inhaled into the lungs and widens the airways. Asthma attacks can be brought on by exercise, allergic reactions and cold weather.
Model release available. Property release not required.