Scientists believe that advances in neuroscience will lead to more and better treatments for chronic pain.

Clinical researchers have thoroughly examined chronic pain patients and found lower levels of endorphins in their spinal fluid.

Research on electroacupuncture (wire connections between the needles to electrically stimulate nerve endings) has shown that this can activate the endorphin system in the body.

Other experiments on acupuncture have shown that higher endorphin levels can be achieved in cerebrospinal fluid after acupuncture.

Researchers are also investigating the impact of stress on the perception of chronic pain.

Pharmacologists are synthesizing new pain medications and discovering pain-relieving substances in drugs that are not typically prescribed for pain.