A man with Tourette's syndrome, afflicted by severe verbal and gestural tics in the urban environment, grows completely symptom-free while hiking in the desert; an elderly woman with Parkinson's disease, who often finds herself frozen elsewhere, can not only easily initiate movement in the garden but takes to climbing up and down the rocks unaided; several people with advanced dementia and Alzheimer's disease, who can't recall how to perform basic operations of civilization like tying their shoes, suddenly know exactly what to do when handed seedlings and placed before a flower bed.
