Less commonly, shortness of breath signals a more serious underlying medical condition.
Shortness of breath, or dyspnea, is a sensation of uncomfortable breathing. It can feel different from person to person, and it can vary in intensity. People may feel out of breath or as if breathing takes more effort than usual.
Dyspnea can beTrusted Source acute or chronic. Acute dyspnea lasts from a few hours to a few days, whereas chronic dyspnea lasts for more than 4–8 weeks.
Physical activity, such as walking, may trigger or worsen shortness of breath for some people.
Shortness of breath is different from finding it difficult to breathe. People who are struggling to breathe should contact to cardiologist immediate.