Why do nosebleeds happen in anime?

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Tags

1. #characters
2. #pressure
3. #nosebleed
4. #works
5. #blood
6. #uncommon
7. #increase
8. #which
9. #arousal
10. #causes
11. #manga
12. #japanese
13. #sight
14. #aroused
15. #nosebleeds
16. #anime
17. #sudden
18. #created
19. #sporadic
20. #sexually
21. #sexual
22. #suffering