Classes and severity of asthma ( stages)

This video tells us about asthma and the stages it possesses as it prevails in the body. The severity of asthma and its effect on the system and some basic diagnostic techniques involved. TIMELINE: 0:07 Introduction 0:15 Asthma 0:38 History mediated family environment) 1:08 Test (diagnostic) for asthma 2:19 Bronchoscopy 2:35 Severance os asthma (stages) 3:49 Controlling asthma 4:17 Asthma in association with other health concerns 4:46 Summarising 5:24 Conclusion