365 Ways #173–The endorphin “flush”

#173–Both the protein in cow’s milk (casein) and the protein found in the majority of grain products (gluten) stimulate the production of chemicals very similar to endorphins–this helps explain why these two foods are so addicting. But if you’re intolerant of either (dark-skinned people will often have trouble with casein while light-skinned people typically will have issues with gluten), your gut wall would prefer you get your “runner’s high” through running instead of The Runs.

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