We play together; we live together; we eat together and through it all we become linked, not just emotionally but physically, say researchers. Over time, our actual muscles and cells begin to operate in sync as we grow old together.

Researchers look at 1,568 older married couples across the United States and found striking similarities “in kidney function, total cholesterol levels, and the strength of their grips, which is a key predictor of mortality,” writes Lindsay Peterson.

Read more at NPR


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