03-04-2016 07:00 via theguardian.com

How happy are you?

Life-changing events can affect your score in a way that might surprise you…How happy are you? And to what extent would this be affected if you suffered a serious injury or won a million pounds on the lottery? On a scale of 0 (not at all) to 5 (very much) how happy do you feel…a) generally at this stage of your life?
b) when chatting with a friend?
c) when watching TV?
d) when laughing at a joke? Continue reading...
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