Psychology
The Neuroscience of Habit Reversal Training
Quick fact
Habit Reversal Training (HRT) was originally developed in the 1970s by Nathan Azrin and Gregory Nunn to treat tic disorders, and it has been successfully used to treat a wide range of habits, from thumb-sucking to stuttering.
Why this is interesting
Have you ever tried to stop a bad habit by just 'thinking about it' and failed? Why is it so hard to break a simple habit like nail-biting, even when you're determined?