Think of yourself as a one-room schoolhouse: everything you are (mind, body, and soul) is in contained in one structure, and the health of each part—good or bad—in that room affects the whole.
This special report from Webmd.com gives some practical tips on healthy habits in different areas of you to promote the health of the whole.
The soul is part of the meditation area. Our faith—our soul—is in that schoolhouse as well. Do you have an ongoing relationship with God?