For years, endorphins have been given credit for gifting runners with euphoric feelings during or after a long-duration workout, but as it turns out, those little guys get foiled by the semipermeable membrane surrounding the brain, which stops them from communicating their happy messages. Now research suggests that a group of chemicals made in the human body that are in the cannabis family are are the cause behind the proverbial "runner's high." Perhaps with a name like "endocannabinoids," we should have suspected all along.
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Written by Curiosity Staff July 5, 2017
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