In 1991 it was discovered that the heart has its “little brain” or “intrinsic cardiac nervous system.” This “heart brain” is composed of approximately 40,000 neurons that are alike neurons in the brain, meaning that the heart has its own nervous system.

Pain: Is It All in the Brain or the Heart?

Abstract

Purpose of review: Scientists have reported that pain is always created by the brain. This may not be entirely true. Pain is not only a sensory experience, but also can be associated with emotional, cognitive, and social components. The heart is considered the source of emotions, desire, and wisdom. Therefore, the aim of this article was to review the available evidence about the role of the heart in pain modulation.

Recent findings: Dr. Armour, in 1991, discovered that the heart has its “little brain” or “intrinsic cardiac nervous system.” This “heart brain” is composed of approximately 40,000 neurons that are alike neurons in the brain, meaning that the heart has its own nervous system. In addition, the heart communicates… Continue Reading (2 minute read)

12 thoughts on “In 1991 it was discovered that the heart has its “little brain” or “intrinsic cardiac nervous system.” This “heart brain” is composed of approximately 40,000 neurons that are alike neurons in the brain, meaning that the heart has its own nervous system.”

  1. Chipchow

    I feel like they are slowly going to discover this about all organs.

  2. jpoteet2

    Perhaps rather than seeing this as the heart has its own brain or the gut has its own brain, we should consider that perhaps the brain is spread throughout the entire body and just more concentrated in the head.

  3. Aakkt

    Starting your paper by saying “The heart is considered the source of emotions, desire, and wisdom. Therefore, the aim of this article was to review the available evidence about the role of the heart in pain modulation.” doesn’t evoke confidence

  4. dapostrophus

    The title (badly) re-words the same idea a couple of times, cementing the idea that what the title says is still true if stated another way. It also seems to redundantly express the same idea more than once redundantly, meaning the title could be considered redundant.

  5. ThursdayBash

    Yes, it helps regulate the heartbeat.

    Your stomach also has neural cells. They help regulate automatic digestive processes

  6. RunDNA

    Blaise Pascal: The heart has its reasons which reason knows nothing of.

  7. johnmcgooner1

    An even more interesting read if, like me, you happen to be reading it in A&E with an irregular heartbeat!

  8. grand_seigneur_puppy

    Those pathetic 40,000 neurons explain my last relationships all too well.

  9. neo101b

    So all I need to do is figure a way to back up my brain in my heart and If I die and my heart is given to someone I can restore that backup and take over their body. It’s not supernatural, it’s science.

  10. eskies4ever

    Actually it’s just a node which sets the electrical impulse to trigger the delayed beats: atria and ventricles. It’s not really a brain, it’s more of a governor… Like a metronome.

  11. wildflowerwishes

    This is the worst explanation of autorhythmicity I’ve ever heard

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