miércoles, 6 de junio de 2012

The Role Of Endorphins In Long Distance Human Endurance & Evolution

One of the unique physical attributes of humans is the ability to travel for long distances. Special populations outline this ability, such as the high landers of Kenya and Ethiopia, who can out run about 90% of the rest of the humanity. This observation has lead many a discussion over the role nature versus nurture of this phenomenon.

So just what is it that rewards us to exercise — Why do we get that “runner’s high” after a long work out? A recently published paper in the Journal of Experimental Biology, lead by anthropologist David A. Raichlen, investigated the blood of humans, dogs and ferrets before and after 30 minutes of exercise. It was observed that an endocannabinoid, or endorphin, named anandamide spiked in humans and dogs, but not in ferrets.
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Anthropology.net

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