For those who may be interested and wondering from where the " According to one study over
forty percent..usw...." information is sourced. Its lifted from Charles Duhigg's 2012 book "A Power Of Habit"
He there makes reference to a study paper published in 2006 by the Duke University.
The paper, entitled " Habits--- A Repeat Performance" actually states that "approximately 45% ..usw......)
Actually I found it an interesting read. The paper also appeared in " CURRENT DIRECTIONS IN PSYCHOLOGICAL SCIENCE"
Vol 15 no 4 pages 198 through 202.