What causes fear psychology?

Related questions

1. Is the difference of a rational and irrational number always irrational?
2. Is overthinking a disorder?
3. Is the square root of 8 irrational?
4. Who proved Root 2 is irrational?
5. What is an irrational number give examples?
6. Is cube root of 2 irrational?
7. What is an irrational thought?
8. What causes overthinking and anxiety?
9. What is irrational number example?
10. Can MS cause irrational behavior?

Tags

1. #adrenaline
2. #include
3. #heart
4. #combat
5. #natural
6. #physical
7. #response
8. #either
9. #prepares
10. #increased
11. #extremely
12. #alert
13. #survival
14. #emotion
15. #known
16. #sweating
17. #itself
18. #fight
19. #enter
20. #flight
21. #reactions
22. #which
23. #levels
24. #mechanism