Runners High Tattoo

Runners High Tattoo - We do not know what causes runner's high. There is evidence to suggest it is caused by endogenous opiods (as depicted in your image), but there is.

There is evidence to suggest it is caused by endogenous opiods (as depicted in your image), but there is. We do not know what causes runner's high.

There is evidence to suggest it is caused by endogenous opiods (as depicted in your image), but there is. We do not know what causes runner's high.

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We Do Not Know What Causes Runner's High.

There is evidence to suggest it is caused by endogenous opiods (as depicted in your image), but there is.

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