Whether there is a habit in the body?

Objections

Objection 1 : It would seem that there is not a habit in the body. For, as the Commentator says (De Anima iii), "a habit is that whereby we act when we will." But bodily actions are not subject to the will, since they are natural. Therefore there can be no habit in the body.
Objection 2 : Further, all bodily dispositions are easy to change. But habit is a quality, difficult to change. Therefore no bodily disposition can be a habit.
Objection 3 : Further, all bodily dispositions are subject to change. But change can only be in the third species of quality, which is divided against habit. Therefore there is no habit in the body.