What is the moral status of actions aimed at tending to one's body?

In an egoistic ethics, the ultimate end of moral action is the growth and continuation of one's own life. Ayn Rand elaborated on discussed many of the kinds of actions required to achieve this goal, but she didn't discuss matters of "bodily care," such as cleaning your teeth, clipping your fingernails, exercising regularly, bandaging a wound, and seeking necessary medical care. These constitute a whole universe of actions necessary for the maintenance of one's body and, hence, one's life. Are such actions moral and virtuous? Should bodily care itself be considered a virtue? Or are these actions already subsumed under the virtues. (If so, I would love to know how to brush my teeth with integrity and pride!)