Sources utilisées :

http://dx.doi.org/10.1002/ejsp.674

https://mariusbourgeoys.ca/2017/11/20/la-transformation-ca-commence-en-vous/

https://www.psychologytoday.com/us/blog/the-happiness-project/200910/stop-expecting-change-your-habit-in-21-days

https://www.spring.org.uk/2009/09/how-long-to-form-a-habit.php

Keepy App: https://keepy.me

Replay Apple Music : https://music.apple.com/replay

Buy Nothing Project : https://buynothingproject.org

Twitter : @mattler0ux et @sarahlalondee