Re­search Says

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Nosh on the lat­est nu­tri­tion news nuggets.

Re­cent re­search has re­vealed that sit­ting for long pe­ri­ods could be as bad for your heart as smok­ing. But how can some­thing that de­mands so lit­tle of your car­dio­vas­cu­lar sys­tem be so harm­ful? It could have to do with tro­ponins, pro­teins pro­duced by car­diac mus­cle cells when they are hurt or dy­ing. In an ob­ser­va­tional study pub­lished in the jour­nal Cir­cu­la­tion, a cor­re­la­tion was dis­cov­ered be­tween peo­ple who sat for 10 hours or more and had above-av­er­age tro­ponin lev­els in their blood. The lev­els were be­low those in­dica­tive of a heart at­tack but were high enough to con­sti­tute what re­searchers called a “sub­clin­i­cal car­diac in­jury.” Study au­thors note that seden­tary be­hav­ior, which is as­so­ci­ated with obe­sity, in­sulin re­sis­tance and fat de­po­si­tion in the heart, can lead to in­jured heart cells and there­fore more tro­ponins. Coun­ter­act a long day at your desk by tak­ing the stairs, park­ing in the far park­ing lot, and standing or walk­ing dur­ing meet­ings.

Stand up for your heart.

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