Why are coughs worse at night?

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Tags

1. #throat
2. #elevated
3. #decrease
4. #because
5. #worse
6. #postnasal
7. #symptoms
8. #person
9. #mucus
10. #cause
11. #sleeping
12. #often
13. #lying
14. #night
15. #becomes
16. #coughing
17. #which