[shivraj]

Dr Maxwell Maltz wrote the bestseller Psycho-Cybernetics.
Originally a Plastic Surgeon, Maltz noticed that it took
21 days for amputees to cease feeling phantom sensations
in the amputated limb. From further observations he found
it took 21 days to create a new habit. Since then the '21
Day Habit Theory' has become an accepted part of self-help
programs.
Brain circuits take engrams (memory traces), and produce
neuroconnections and neuropathways only if they are
bombarded for 21 days in a row. This means that our brain
does not accept ‘new’ data for a change of habit unless
it is repeated each day for 21 days (without missing a day).
the fact that the human mind takes almost exactly
21 days to adjust to a major life change, universally - whether
it's a negative like a loss of a limb or a loved one, a change
of employment or residence, or positive like entering into a
new romantic relationship.!!!