It varies from person to person, but research suggests that it can take anywhere from 21 to 66 days to form a habit, depending on the complexity of the habit and the individual's behavior. Consistency and repetition are key in establishing new habits.
30 to 40 per this wiki.answers.com article: http://wiki.answers.com/Q/How_long_does_it_take_for_something_to_become_a_habit
Of course. Anything can be a habit if repeated over time (most habits take 30-40 repetitions to form). A good way to break this mean habit is the cold turkey method. Just stop. Either compliment constantly, ignore the urge, or, if it's this bad, stop talking.
Four months
somewhere between 21 and 28 days.
It usually takes 3,000 to 5,000 reps before you get muscle memory....
If you have a bad habit that you want to break, it is a common belief that it can take 21 days to form a new habit. So get help from friends and family to hold you accountable to stopping the old habit and help inspire you to try something new in its place.
It does indeed take an average of 20 repetitions for most people to learn something new. This is why homework has you repeat a process so many times in different ways, and why people who are trying to learn a new language often have trouble unless they actually speak it with someone. When breaking one habit (like smoking) and substituting a new one (like exercising), you can pretty much consider it a success if you stick with it for three to four weeks.
This depends on the individual and their willingness to break the habit. It may happen on the first try or it may happen on the tenth. The main thing is a person must keep trying until the habit is broken.
You should keep track of your progress in a log of some sort, even a notebook works. Take time with repetitions and do not rush. Put work into each repetition, and do 8 to 12 repetitions each set.
It takes 90 days to break a habit , so maybe that's how long it takes for something to become a habit
If one has this habit, they must consciously stop putting their finger in their mouth.
If you stick with it on a regular basis, you should have formed a habit within 3 months.
You should only take them out once or twice but try not to because it gets them into a bad habit