Endorphins and other morphine-like substances known as opioids, which are released during exercise, don't just make you feel good -- they may also protect you from heart attacks, according to University of Iowa researchers.
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The opioid system controls pain, reward and addictive behaviors. Opioids exert their pharmacological actions through three opioid receptors, mu, delta and kappa whose genes have been cloned (Oprm, Oprd1 and Oprk1, respectively).
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A potential new pain-killing drug developed by medical scientists at the University of Leicester and Ferrara in Italy is to be discussed at a public lecture on 20th March.
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Whether they're fighting postoperative soreness or relieving chronic discomfort from conditions such as cancer, morphine and other opioids are powerful weapons against pain. Now, in research published online in Nature Neuroscience, Brown University scientists give one reason why these painkillers work so well.
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