Inclusion Criteria:  Young people aged 12-17 years Physician diagnosed asthma Impaired quality of life (<85) Under the care of a general practitioner, community or hospital practitioner for their asthma  Exclusion Criteria:  Co-existent respiratory conditions such as bronchiectasis Already using breathing techniques Already enrolled in another interventional study Lack of informed consent Learning difficulties Previously involved with Stages 1 and 2 of the study