Spirituality has been defined in numerous ways. These include: a belief in a power operating in the universe that is greater than oneself, a sense of interconnectedness with all living creatures, and an awareness of the purpose and meaning of life and the development of personal, absolute values. It's the way you find meaning, hope, comfort, and inner peace in your life. Although spirituality is often associated with religious life, many believe that personal spirituality can be developed outside of religion. Acts of compassion and selflessness, altruism, and the experience of inner peace are all characteristics of spirituality. Many Americans are becoming interested in the role of spirituality in their health and health care. This may be because of dissatisfaction with the impersonal nature of our current medical system, and the realization that medical science does not have answers to every question about health and wellness.In most healing traditions and through generations of healers in the early beginnings of Western medicine, concerns of the body and spirit were intertwined. But with the coming of the scientific revolution and the enlightenment, these considerations were removed from the medical system. Today, however, a growing number of studies reveal that spirituality may play a bigger role in the healing process than the medical community previously thought.Spiritual practices tend to improve coping skills and social support, foster feelings of optimism and hope, promote healthy behavior, reduce feelings of depression and anxiety, and encourage a sense of relaxation. By alleviating stressful feelings and promoting healing ones, spirituality can positively influence immune, cardiovascular (heart and blood vessels), hormonal, and nervous systems. An example of a religion that promotes a healthy lifestyle is Seventh Day Adventists. Those who follow this religion, a particularly healthy population, are instructed by their Church not to consume alcohol, eat pork, or smoke tobacco. In a 10 year study of Seventh Day Adventists in the Netherlands, researchers found that Adventist men lived 8.9 years longer than the national average, and Adventist women lived 3.6 years longer. For both men and women, the chance of dying from cancer or heart disease was 60 - 66% less, respectively, than the national average.Again, the health benefits of religion and spirituality do not stem solely from healthy lifestyles. Many researchers believe that certain beliefs, attitudes, and practices associated with being a spiritual person influence health. In a recent study of people with acquired immune deficiency syndrome (AIDS), those who had faith in God, compassion toward others, a sense of inner peace, and were religious had a better chance of surviving for a long time than those who did not live with such belief systems. Qualities like faith, hope, and forgiveness, and the use of social support and prayer seem to have a noticeable effect on health and healing.