When a person feels overly exhausted and constantly hurting all over, they may have fibromyalgia. This is a chronic condition characterized by widespread pain in the muscles, ligaments, and tendons of a person, as well as fatigue and multiple tender points. These points are places in a person’s body where a slight hint of pressure causes pain. Also called fibrositis, chronic muscle pain syndrome, psychogenic rheumatism and tension myalgias, fibromyalgia is more common to women than men.
People dealing with this condition often report that they do not respond to the types of medication that relieve other people’s pain. A new research from Michigan explains that this might be because patients with fibromyalgia were found to have a reduction in the binding ability of a type of receptor in the brain that is the target of opioid painkiller drugs such as morphine. The study includes PET scans (Positron Emission Tomography) of the brains of patients with fibromyalgia, and an equal number of people without the said condition. Results indicate that the patients with fibromyalgia have reduced their mu-opioid receptor (MOR) availability within the parts of the brain...