The morphinelike compound McDougall refers to is known as endomorphin 1, and his team studied whether peripheral administration of this endogenous ¿-opioid peptide could reduce knee joint pain.

Endogenous opioid peptides are the neurochemical basis of the anesthetic and analgesic effects of acupuncture. The quantity of acupuncture stimulus can be controlled accurately by using ...

Everyone knows that stubbing your toe hurts. What makes it stop hurting is the body's main pain-blocking process - the natural production of opioids. Cognitive-based approaches found to reduce pain, ...