Christian Science Nursing is an activity defined by Article VIII, Section 31 of the Manual of the Mother Church, written by Mary Baker Eddy. It provides patients with spiritual reassurance and skilled practical care, such as bathing, cleansing and bandaging of wounds, assistance with mobility, modification of food, and so forth. It does not include medical treatment, such as diagnosing, drugs, herbal remedies, or physical therapy. Acting in their professional capacity, Christian Science nurses are ethically bound to remain within their professional "Scope of Services."