Chronic orofacial muscle pain: a new approach to diagnosis and management.
Klineberg, I, McGregor, N, Butt, H et al.·The Alpha omegan·1998
This study looked at different types of muscle pain conditions, including fibromyalgia and jaw pain, and found they affect men and women differently. The researchers suggest that some people may be genetically vulnerable to chronic pain, and that infections at the start of illness might play a role. They found links between abnormal fat levels, muscle metabolism problems, and fibromyalgia, which may also be connected to chronic fatigue syndrome.