Fibromyalgia is characterized by chronic widespread pain and tenderness for at least 3 months.

"That will probably go down to about 65% because chronic, widespread pain is only about 1.5 times greater in women than in men."

One is widespread pain, which means the pain is on both sides of your body above and below the waist.

The disorder includes widespread pain, fatigue, sleep disturbances, and often depression.

Essentially, Dr. Wallace says, the disease involves widespread pain lasting at least three months.

Fibromyalgia, or widespread pain and tenderness of muscle and soft tissue.

One major characteristic of fibromyalgia is widespread pain.

In addition, for a diagnosis of fibromyalgia, the symptom of widespread pain must have been present for three months.

"A lot of people experience widespread pain, but when do you give it the label of fibromyalgia?"

"The exact mechanisms by which poor sleep can cause widespread musculoskeletal pain are uncertain," the researchers write.