A new study carried out by the Stanford University School of Medicine found that passionate love provides the same effective pain relief as painkillers or illegal drugs like cocaine.
Sean Mackey, MD, PhD, chief of the Division of Pain Management, associate professor of anesthesia and senior author of the study says that "when people are in this passionate, all-consuming phase of love, there are significant alterations in their mood that are impacting their experience of pain.""We're beginning to tease apart some of these reward systems in the brain and how they influence pain.
"These are very deep, old systems in our brain that involve dopamine " a primary neurotransmitter that influences mood, reward and motivation," he adds.
For studying the way that love alters pain, researchers recruited 15 Stanford University undergraduates - eight women and seven men, and asked every one to bring a photo of their loved one and another of an equally attractive friend.
They chose people who were in the first nine months of a relationship because they "wanted subjects who were feeling euphoric, energetic, obsessively thinking about their beloved, craving their presence.
"When passionate love is described like this, it in some ways sounds like an addiction, [s] we thought, 'Maybe this does involve similar brain systems as those involved in addictions which are heavily dopamine-related.'"
The experiment consisted in scientists successively flashing the pictures before the participants, while heating up a computer-controlled thermal stimulator placed in the palm of their hand, that caused moderate pain."
All this happened while the brains of the subjects were being scanned in a functional magnetic resonance imaging machine.
The participants were also tested for levels of pain relief while being distracted with word-association tasks like thinking of a sport that did not involve balls.
This last experience was carried out because previous studies showed that distraction causes pain relief, and the scientists wanted to make sure that love was not working the same way as a distraction.
The results showed that both distraction and love reduced pain...
http://archive.news.softpedia.com/news/Love-Is-the-Best-Painkiller-161019.shtml