What triggers fear?

Related questions

1. Who did Dahmer kill?
2. What is the fear of fear called?
3. What causes fear?
4. Why do I sleep with the light on?
5. How did Chris Kyle Navy SEAL die?
6. Is sleeping with a light on bad?
7. What is it called when you have a fear of the dark?
8. Why do we get scared at night?
9. What is the Zodiac killer's real name?
10. What anxiety feels like?

Tags

1. #perceived
2. #types
3. #traumatic
4. #functions
5. #called
6. #induced
7. #threat
8. #hiding
9. #fleeing
10. #organ
11. #freezing
12. #certain
13. #occurs
14. #organisms
15. #which
16. #causes
17. #metabolic
18. #ultimately
19. #behavior
20. #danger
21. #phobia
22. #irrational
23. #events
24. #feeling
25. #change