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A recent meta-analysis of optimism supported past findings that optimism is positively correlated with life satisfaction, happiness, psychological and physical well-being and negatively correlated with depression and anxiety. 
1845, from optimist + -ic . Related: Optimistical (1809); optimistically .
A dietician explains how this simple change in your morning routine can make your day a whole lot better.
Archaic Having the temperament and ruddy complexion that was formerly thought to be characteristic of a person dominated by this humor; passionate.
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