The good news is, we may all be running with bongs shortly. It also explains why someof us get the munchies after a long run. Don't borgart that joint my friend.
The very far out coach.
Runner's High? Endorphins? Fiction, Some Scientists Say
Dr. Richard Friedman, a psychopharmacologist at Weill Medical College of Cornell University, had a runner's high -- once.
''When I was young and foolish, I ran a marathon in the Smoky Mountains,'' he said. ''I have never before or since had that kind of high, and maybe it was just the result of a near-death experience.''
Bill Fox, a recreational bicyclist and an I.B.M. research lab technician, says his exercise highs do not come easily.
''You've really got to work for this high,'' Mr. Fox explained, saying he usually needed two hours or more of sweaty, intense, vigorous exercise. But when the feeling comes, he said, it is just like cocaine, a drug he knows from his days as an addict. ''It has that well-being kind of feeling, that Superman kind of feeling,'' said Mr. Fox of Middletown, N.Y.
Others say they never get such a feeling, no matter how hard or how much they exercise. In fact, despite a widespread belief in the so-called runner's high, a feeling of intense euphoria that is supposed to come with vigorous exercise, the experience is not consistent or predictable. Some researchers have asked whether it exists at all.
Many say its supposed genesis, a rush of endorphins into the brain, is without scientific evidence and some say the whole endorphin-runner's-high hypothesis is the scientific version of an urban legend.
''I believe this endorphin-in-runners is a total fantasy in the pop culture,'' said Dr. Huda Akil, an endorphin researcher at the University of Michigan, who is president-elect of the Society for Neuroscience.
Yet only now are a few researchers rigorously examining exercise as an addictive behavior. They are finding that exercise, in rats at least, may actually be addictive but that it is not at all clear that the crucial brain chemical is an endorphin.
The hypothesis that there is a runner's high and that it is caused by endorphins emerged in the 1970's, when scientists found a new class of brain chemicals that act just like morphine.
''We had meetings to decide what to call it,'' said Dr. Solomon Snyder, a neurobiologist at Johns Hopkins University, with a committee deciding on ''endorphin.'' The word is an amalgam of endogenous, meaning made by the body, and morphine.
Scientists eagerly looked for evidence that the chemicals mediated any and all sorts of pleasure. Meanwhile, Dr. Snyder said, a running craze had begun, with enthusiasts exalting in the wonderful feelings they said exercise elicited.
1 comments:
I don't believe I've experienced much of a runner's high myself (although my face did go completely numb when I ran my first and only marathon), but there is some evidence to support its existence: In a 2008 publication (Cereb Cortex. 2008 Nov;18(11):2523-31) scientists demonstrated a statistically significant increase in euphoria post run, and that this was actually inversely correlated with opioid receptor expression in various regions of the brain... The first step of dealing with your addiction is overcoming your denial :)
Post a Comment