"Dr. Carl Peterson, M.D. conducted a study at ORU in Tulsa, Oklahoma. Being a brain specialist, he was doing research on the relationship between the brain and praying or speaking in tongues. He found that as we pray in the Spirit or worship in the Spirit (our heavenly language), the brain releases 2 chemical secretions that are directed into our immune systems giving a 35 to 40 percent boost to the immune system. This promotes healing within our bodies. Amazingly, this secretion is triggered from a part of the brain that has no other apparent activity in humans and is only activated by our Spirit-led prayer and worship!" Glossolalia influences on stress response among Apostolic Pentecostals: The data in this study suggest that glossolalia (speaking in tongues) is associated with a reduction in stress in response to normal stressors and significantly associated with positive mood and calmness. Obviously the reduction of stress is extremely helpful to one’s immune system and entire health. Stress damages the body. Peace heals it. A recent study of nearly 1,000 evangelical Christians in England found that those who engaged in the practice were more emotionally stable than those who did not.