your partner's optimism matters more than your own

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Your partner's optimism has a greater impact on your longevity than your own optimism, as discovered here.

Having an optimistic spouse predicted better mobility and fewer chronic illnesses over time, even above and beyond a person’s own level of optimism, according to a new University of Michigan study of 3,940 adults.

So, if your partner falls into the doldrums, you now have another reason to cheer them up-- your own health and well-being.