Throughout most of human history, our hunter-gatherer ancestors had to engage in physical activity to obtain food. But nowadays we can drive to the supermarket, briefly walk through its aisles, check-out, then drive back home. This may seem like a luxury, but evolution hasn't prepared us for such a drastic shift in behaviour.A possible explanation for the "runner's high," a feeling of intense eup
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July 30, 2010
Endocannabinoids and the runner's high
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