Movement in humans is a learned behaviour. We learn to move mainly by watching other people go through the motions: we are not born with any innate ability to move around independently. As babies and toddlers, we spend years watching and mimicking our parents, programming our brains with the data they provide. Our brain knows all about walking before we even attempt to walk ourselves, through unconscious observation. Later, we start to get the hang of it through intensive practice, and especially by falling down and making mistakes. Encouragement and supportive instruction from adults help us to keep practising until we have, at last, developed the ability to move independently. But imagine, if as we started to trying to walk, when we fell over on the second attempt, our parents said "oh dear, walking is not for you"! Unfortunately, this is precisely the message people with PD tend to be given.
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