The WHO wants us to be happy: it's good for our health. This study derived from the Framingham study, finds that
- Happy people tend to be at the centre of large groups of other happy people
- Your happiness is related to the happiness of people you may not even know who are up to three degrees removed from you (such as your friend's friend's friend)
- Happiness ripples through social networks, spreading like a contagious disease
- You don't have to be friends with people just like you.
Source: BMJ 2008;337:a2338
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Dr Ann Robinson, BMJ Group
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