Your heart started beating before your brain was formed, a process scientists call autorhythmicity. It has its own independent complex nervous system known as "the brain in the heart."
It communicates to your brain and your body in four ways: 1) nervous system connections, 2) hormones produced in the heart itself, 3) biomechanical information via blood pressure waves, and 4) energetic information from strong electrical and electromagnetic fields. By "strong" I mean your heart has an electrical field 60 times greater in amplitude than the activity in your brain and an electromagnetic field 5,000 times stronger than that of your brain. Your heart's electromagnetic field is strong enough that it can be measured for several feet outside your body. [anon]
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