Monday 19 October 2015


The Brain: Neurology
Neurology is the study of nervous system i.e. brain. The brain is made up of billions of cells called neurons. The brain controls every part of the body. There are messages to and from the brain for parts of the body. The brain sends signals to the body parts and to the heart.

The Heart: Cardiology
Cardiology is the study of heart. The heart has blood vessels to carry blood to and from it. The function of heart is to circulate blood throughout the body. The heart sends blood to the brain through a specific carotid artery. There is a complex blood circulation in the brain.      

The Brain-Heart connection: Neurocardiology
Neurocardiology is the study of the interaction between brain and heart. When the brain sends signals to the heart, the heart beats that results in maintaining the blood pressure of the body. The nervous system of the brain controls the heart rate. Once the blood pressure is maintained, the heart sends back signals to the brain that the blood pressure is maintained now. The brain then stops sending signals to the heart.

Heart disorder affects the brain:
If the heart fails to send back the signal properly, the brain will continue sending signal to the heart to beat more and more resulting in a high blood pressure.  It means that the brain now is sending signals continuously, heart is beating forcefully and the heart is not sending back a stop signal to brain. It causes impaired heart function and high blood pressure. This high blood pressure eventually results in brain dysfunction. It is now understandable that brain and heart are interconnected.
The brain needs constant supply of oxygenated blood. If heart muscle becomes weak, the blood pumping throughout the body and to the brain is limited. When the blood circulation to the brain is limited it causes problems with the electrical activity of the heart.  

Brain disorder affects the heart:
The brain that is not functioning properly does not generate proper neuron currents. It affects the electrical system of the heart. Any change in heart electrical activity is due to unusual brain electrical activity. Emotions that arise with in the brain affect heart rate. For example, anger initiating from the brain can result in high blood pressure.

The heart sends signals to the brain. The brain sends signals to the heart.
The disorders in brain activity can cause heart failure. Loss of cells in brain also causes heart problems.
Heart neurologically affects the brain.  A heart disease has a definite impact on brain function. The diseases that cause heart malfunction affect the brain as well.


Also read: Is there really a Brain in Heart

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