01/27/2015 08:09 am ET Updated Jan 27, 2015

Psychologists Say Doing These 7 Activities Will Make You Happier

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Happiness is good for you.

Psychology research shows that happy people make more money, perform better at work, live longer, and have better marriages than everyone else.

But the causes of happiness are elusive — philosophers have been trying to figure it out for thousands of years.

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