Human hearts evolved for endurance due to shift from hunting to farming and a modern lifestyleNaturalNews.com

(Natural News) Hearts evolved to make humans better at endurance tasks, a new study has found. According to research conducted by scientists from Canada, the U.K. and the U.S., this change — which started around the time people shifted from being hunter-gatherers to being farmers — enabled humans to become more efficient at maintaining their energy…

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