Hôpital du Sacré-Cœur de Montréal



Recruitment status

Recruitment complete, follow-up currently in progress


Asthma is one of the four most common chronic diseases in adults, affecting around 8.5% of Canadians. Although effective treatments are available, more than half of asthmatics in Canada (53%) continue to have poor asthma control (i.e., asthma symptoms that significantly interfere with daily activities and are associated with a lower quality of life). Moreover, it seems that psychological stress can influence the frequency and severity of asthma symptoms. However, the physiological mechanisms that may explain the relationship between psychological stress and poor asthma control are not yet well known. Thus, this study aims to better understand the impact of psychological stress on four major biological systems involved in asthma, which are the respiratory, immune, autonomic nervous and cardiovascular systems.