Asthma is a respiratory disease that affects your airways. It is a condition in which the airways in your lungs become swollen and narrow, which makes it difficult to breathe. While the exact cause of asthma remains unclear despite research, the condition is birthed and triggered by environmental, genetic, and lifestyle factors such as smoking, obesity, etc. To know more about asthma and its causes, visit Afriglobal Medicare.https://www.afriglobalmedicare.com/does-blood-group-increase-asthma-risk-causes-symptoms-diagnosis-of-asthma/