Heart Brain Cells

Modern Scientific Understanding of the Heart:

  • Recent research indicates that the heart has its own "little brain," a network of about 40,000 neurons.

  • This network allows the heart to communicate with the brain and other organs and even engage in independent processing and decision-making.

  • The heart, therefore, is more than just a pump; it plays a significant role in regulating bodily functions, emotions, and possibly influencing behavior and cognition.

Quranic Reference to the Heart:

  • In Surah Al-Hajj, Verse 46, it states: "أَفَلَمْ يَسِيرُوا فِي الْأَرْضِ فَتَكُونَ لَهُمْ قُلُوبٌ يَعْقِلُونَ بِهَا أَوْ آذَانٌ يَسْمَعُونَ بِهَا ۖ فَإِنَّهَا لَا تَعْمَى الْأَبْصَارُ وَلَٰكِنْ تَعْمَى الْقُلُوبُ الَّتِي فِي الصُّدُورِ" which translates to "Have they not journeyed in the land, and had hearts to think with, or ears to listen with? It is not the eyes that go blind, but it is the hearts, within the chests, that go blind."

  • This verse suggests a deeper function of the heart beyond its physical role, implying it has a capacity for understanding or "thinking."

Connecting Science and the Quranic Verse:

  • The Quran's mention of the heart having a thinking or perceptive role resonates with the modern discovery of the heart's complex neural network.

  • This correlation is seen by some as an indication of the Quran's insight into the heart's functions, aligning with scientific findings that were not known at the time of its revelation.


  • For believers, the verse is often interpreted as a sign of the Quran's deep understanding of human nature, encompassing both physical and metaphysical aspects.

  • It's viewed as an example of how the Quran conveys messages that have layers of meaning, some of which align with later scientific discoveries.

In summary, the Quranic verse about the heart and its role in perception, when viewed alongside modern findings about the heart's neural network, is seen by many as an example of the Quran's profound insights into the human body and mind.