Chocolate is associated with the release of serotonin, the hormone that makes you feel relaxed, calm, and happy.
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Research has determined that most people are happiest at 7:26pm on a Saturday night.
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Eating a banana can cheer you up!
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The key to happiness is spending your money on experiences rather than possessions, according to studies.
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Those who get out of bed by 7am are more likely to be thinner and happier.
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