The involvement of the brain's opioid system in "runner's high" suggests one possible explanation for why endurance athletes enter a meditative state during long training sessions.
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Q289: Acupuncture seems to reduce pain by reducing
Q290: Psychoactive drugs can alter brain functioning by
Q291: "Runner's high" is the rush of euphoria
Q292: One way in which drugs can prolong
Q293: The drug naloxone acts as an antagonist
Q295: An antagonist is a drug or other
Q296: Nicotine binds to acetylcholine receptor sites, stimulating
Q297: One of the key ways that drugs
Q298: In the central nervous system, communication occurs
Q299: An agonist is a drug or other
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