Can a heart store memories?

The theory of cellular memories states that memories, as well as personality traits, are not only stored in the brain but may also be stored in organs such as the heart. The best way to understand cellular memories is studying cases of organ transplants.

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Keeping this in consideration, can hearts communicate?

Research has shown that the heart communicates to the brain in four major ways: neurologically (through the transmission of nerve impulses), biochemically (via hormones and neurotransmitters), biophysically (through pressure waves) and energetically (through electromagnetic field interactions). And another question, how painful is a heart transplant? Generally, most patients do not report a lot of pain after heart transplant surgery. The incision does cause pain or discomfort when you cough.

Thereof, does heart have brain?

The heart has its own "brain." Now, scientists have drawn a detailed map of this little brain, called the intracardiac nervous system, in rat hearts. The heart's big boss is the brain, but nerve cells in the heart have a say, too. These measurements helped sort the heart's neurons into discrete groups. Do we think with heart or brain? The heart does not have components that manifest as thinking and feeling. The brain/mind allows us to think, feel, and act. The brain/mind is what creates emotions and thoughts. The heart merely supplies blood to the brain and the rest of the body.

Subsequently, what is thickening of the heart?

Hypertrophic cardiomyopathy (HCM) is a disease in which the heart muscle becomes abnormally thick (hypertrophied). The thickened heart muscle can make it harder for the heart to pump blood.