Exercise and breathing troubles

About seven per cent of people suffer from exercise-induced asthma when they exert themselves.

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Published: Thu 11 Feb 2016, 11:00 PM

Last updated: Fri 12 Feb 2016, 4:16 PM


Graphic: Helen Lee McComas, Paul Trap
Source: American Academy of Allergy, Asthma and immunology

Published: Thu 11 Feb 2016, 11:00 PM

Last updated: Fri 12 Feb 2016, 4:16 PM

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