Spirituality linked with better health outcomes, patient care. The study is the most rigorous and comprehensive analysis to date of scientific literature on health and spirituality. Overlooking spirituality in health care leaves patients feeling disconnected from the health care system and from the clinicians caring for them. Asking about a patient's spirituality should be part of patient-centered, value-sensitive care, new research suggests. Source 4u.
The definition of spirituality is a bit vague, but it does suggest a link between spiritual, mental, emotional and physical health.
I think your spiritual beliefs have no bearing on your physical health. I think a calm brain stimulates healthy processes throughout the body.