Relating to both the brain and the heart, or describing interactions between the nervous system and the cardiovascular system.
From Latin cerebrum (brain) + Greek kardia (heart) + -ac (relating to). This compound term emerged in medical literature to describe the interconnected physiology of two vital organ systems.
The brain-heart connection is incredibly real: stress triggers brain signals that make your heart race, and irregular heartbeats can actually send signals back to the brain, creating a two-way conversation between these vital organs.
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