We’re finishing American Heart Month with some things you probably didn’t know about your heart. Your heart is unique in many ways and this week, you’re going to learn a few of them.

The heart muscle is similar to skeletal muscle in the way it contracts, but that’s where the similarity ends. While skeletal muscles are laid out in parallel fashion and independent of one another, the heart muscle splits and connects to other fibers. In that way, every heart muscle cell connects to every other heart muscle cell. That allows signals to be transferred very . . .

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