There are MANY books out there on habit formation. Are they all saying the same thing?

Some habits are more complicated than others. Some habits require us to untangle one automatic set of behaviours and replace them with another.

It can be a long process — much longer than the 21 days that's often promised.  

Norman and Tegan tell us how to form a new habit, in far less than 300 pages, so you can get started. 

References

• Neurobiology of habit formation
• How the brain controls our habits - MIT
• Bridging the gap between striatal plasticity and learning
• Basal ganglia and beyond: The interplay between motor and cognitive aspects in Parkinson’s disease rehabilitation
• You are what you repeatedly do: Links between personality and habit
• How are habits formed: Modelling habit formation in the real world
• How does habit form? Guidelines for tracking real-world habit formation
• The role of habit in compulsivity
• Goal-Directed and Habitual Control in Human Substance Use: State of the Art and Future Directions