How long before something becomes a habit?

Related questions

1. What is good manners in life?
2. What are the most annoying habits?
3. How do you make a habit in 21 days?
4. What are bad habits?
5. What's the two minute rule?
6. What is the 15 minute rule?
7. How do you not annoy someone?
8. What is atomic change?
9. Is it true 21 days make a habit?
10. What is bad lifestyle?

Tags

1. #before
2. #automatic
3. #takes
4. #anywhere
5. #circumstances
6. #person
7. #habit
8. #months
9. #becomes
10. #average
11. #behavior
12. #lally
13. #depending
14. #widely
15. #exact
16. #study
17. #people