How does dyspnea occur?

Related questions

1. What does shortness of breath indicate?
2. What is shortness of breath a symptom of?
3. How do you know if you have dyspnea?
4. Is shortness of breath a sign of cancer?
5. Can anxiety cause shortness of breath all day?
6. What medicine can I take for shortness of breath?
7. What causes not being able to take a deep breath?
8. Is dyspnea a sign or symptom?

Tags

1. #affected
2. #refers
3. #uncomfortable
4. #considered
5. #disease
6. #subjective
7. #perceived
8. #patient
9. #difficult
10. #reported
11. #dyspnea
12. #tolerated
13. #indicative
14. #exertion
15. #activity
16. #experience
17. #occur
18. #breathing
19. #level
20. #sensation
21. #usually
22. #occurs
23. #normally