Cranial Osteopathy is an area of osteopathy that observes by gentle palpation subtle pulses on the cranial bones. This is referred to as the cranial rhythm
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Craniosacral therapists use the therapy to treat (or help alleviate the symptoms of) mental stress, neck and back pain, [headaches], TMJ Syndrome, and for chronic pain conditions such as fibromyalgia.[1]
The practitioner needs a finely developed sense of touch for diagnosis. Because of it's gentle nature it is particularly favoured for treating young children and babies for a variety of pediatric conditions.
http://en.wikipedia.org/wiki/Craniosacral_therapy