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Heart disease research finds happiness can kill

It's official - too much happiness can kill you.

Well, that's according to new Swiss research, which suggests one in 20 cases of takotsubo cardiomyopathy - a potentially fatal change in the shape of the heart's left ventricle - is caused by joy, rather than stress, anger or fear.

BBC News gets to the heart of the matter.

Video produced by Dominic Bailey

  • 03 Mar 2016
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