Scientists say they can measure happiness, and they claim it can make us more resilient and creative, harder working, healthier and even live longer.
So shouldn't the government intervene and make us do what's good for us or at least encourage us?
We journey to the Himalayan kingdom of Bhutan, which is the only country in the world that puts happiness at the heart of government.
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Ready to Watch The Happiness Formula, Season 1, Episode 1?