Why is blue so popular?

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Tags

1. #affect
2. #colors
3. #other
4. #associated
5. #things
6. #people
7. #favor
8. #weather
9. #color
10. #making
11. #bodies
12. #popular
13. #respond
14. #clear
15. #theory
16. #water
17. #humans
18. #brain