Asthma- A condition in which a person's airways become inflamed, narrow and swell, and produce extra mucus, which makes it difficult to breathe.
Asthma attack- Called an asthma exacerbation, the airways become swollen and inflamed. The muscles around the airways contract and the airways produce extra mucus, causing the breathing (bronchial) tubes to narrow.
During an attack, you may cough, wheeze and have trouble breathing. Symptoms of a minor asthma attack get better with prompt home treatment. A severe asthma attack that doesn't improve with home treatment can become a life-threatening emergency.
Answer:
The role of increased blood flow
During moderate- to high-intensity exercise, your muscles and tissues demand more nutrients and oxygen, which means that your heart must work harder and pump faster to meet those needs, says preventive cardiologist Haitham Ahmed, MD.
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