Study: Healthy marriage leads to a longer life

You've heard the saying "happy wife, happy life."

New research backs up that old wife's tale.

According to the study published by the Association for Psychological Science, a happy marriage can lead to a longer life.

More than 4,000 couples over the age of 50 were surveyed.

It found that those in a happy marriage were healthier than those in less happy relationships.
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