Consuming fruits and vegetables (raises) the level of tryptophan in the brain, thereby increasing serotonin production, which has a (calming) effect. High-protein foods (promote) the production of dopamine and norepinephrine, which promote alertness, Nelson said. On the other (hand), eating junk food (reduces) the levels of these hormones in the brain, increasing (stress) and tension and reducing joy and alertness.
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