Hallberg's Picture of Health: On happiness

How happy are you? And how can you measure it?

One Harvard health study that's been going on for over 75 years aims to answer these questions.

The study, which getting some attention again now from the New York Times and as a Ted talk, finds that there are a couple of constants when it comes to health and happiness.

MPR News' regular medical analyst Dr. Jon Hallberg joined All Things Considered host Tom Crann to discuss what we can and can't learn from the study.

Use the audio player above to hear the full conversation between Hallberg and Crann.

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