It does plenty. See my other comment here. Additionally, it maintains proprioception, it fosters a sense of well-being (for some), it helps lower blood glucose,

It does plenty. See my other comment here. Additionally, it maintains proprioception, it fosters a sense of well-being (for some), it helps lower blood glucose, it slightly elevates fat metabolism, it contributes hugely to veinous return from the legs, it may help gut motility... and probably much more besides.