Matt Cutts: Try something new for 30 days

In his talk TED talk "Try something new for 30 days", Matt Cutts suggests practicing new habits for 30 days.

Think about something you've always wanted to add to your life and try it for the next 30 days. It turns out 30 days is just about the right amount of time to add a new habit or subtract a habit -- like watching the news -- from your life.

I learned that when I made small, sustainable changes, things I could keep doing, they were more likely to stick. There's nothing wrong with big, crazy challenges. In fact, they're a ton of fun. But they're less likely to stick.

Note: The time to form a habit varies a lot, and 30 days is likely just a ballpark number:

The time it took participants to reach 95% of their asymptote of automaticity ranged from 18 to 254 days; indicating considerable variation in how long it takes people to reach their limit of automaticity and highlighting that it can take a very long time.

Lally, P., van Jaarsveld, C.H.M., Potts, H.W.W. and Wardle, J. (2010), How are habits formed: Modelling habit formation in the real world. Eur. J. Soc. Psychol., 40: 998-1009. https://doi.org/10.1002/ejsp.674