The beauty of the (non-existing) NASA-study: it advises to do something 24/7 for 30 consecutive days. If you have no way out of doing something (quite unusual) then it’s no wonder that your brain is rewired for maintaining a sense as crucial as vision. Given the evidence of the original study, it even takes only 10 days.
And btw, it’s not talking about changes of behaviour. The changes happened so the subject could continue with normal life.
My hunch is any adaption that is critical for survival will manifest physically and/or neurologically as quickly as possible. So, even for "mere" habit changes we might see a lower boundary for how long it takes. Maybe those 10 days?
The upper boundary might depend on how often and how consistent we are triggered (remember, "24/7"). And I assume, the less often the behaviour is required, the stronger the trigger (aka reminder) has to be.
Imagine something you need to do once every month. What about the 30 days? Or does it then take 30 months (asking the"gurus")?
It brings us back to the idea of setting up a "system". What kind of behaviour do I want to exercise? How often? What is a practical(!) trigger for that? A simple calendar entry might suffice, no need for elaborate goals or positive affirmations. Even the"Why?"might be answered with a simple "Because it’s necessary."
Still being a learner, trying to figure things for myself ...
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