Every Monday, lots of people start the perfect diet: no sugar, no bread, no soda, a new gym membership and three liters of water a day. By Thursday, the plan is over. The problem isn't willpower, it's the size of the change.
How a habit forms
Researchers followed people building a new habit and found it took about two months on average for the action to become automatic, with big differences between people. And an encouraging detail: missing a day now and then didn't get in the way.
What that means in practice
- One thing at a time: start with the habit that has the biggest effect for you, like logging what you eat.
- Small enough to feel too easy: a 10-minute walk, a glass of water when you wake up.
- Same time, same trigger: "after my coffee, I log breakfast".
- Grow only once it's automatic: then add the next step.
Missed a day? Keep going
One bad day doesn't erase weeks of repetition. What erases it is quitting because of it.
Sources
- Lally P, van Jaarsveld CHM, Potts HWW, Wardle J. How are habits formed: modelling habit formation in the real world. European Journal of Social Psychology. 2010;40(6):998-1009.
This content is for information only and doesn't replace advice from a doctor or dietitian.