Asian medicine has included the practice of acupuncture for thousands of years. Needles are inserted into the body at certain points of stimulation, in an effort to effect physical changes in a person. There is modern medical research that shows acupuncture offers tangible benefits with reducing nausea and pain, though the exact cause and reason is not yet understood. Acupuncture can also relieve muscular or skeletal problems, such as back or other spine issues, and help blunt chronic migraines. The practice is spreading as more people become aware of it.