The Heart's Hidden Brain: Neurons of Heart and the Impact of Food

The heart is often considered purely a muscle, pumping blood throughout our body. However, recent research has revealed a surprising truth: the heart harbors a complex network of neurons, forming a miniature "brain" that plays a crucial role in its function. These intrinsic cardiac neurons (ICNs) influence heart rate, rhythm, and even emotional responses.

The Heart's Nervous System:

The neurons in the heart constitute a network known as the "intrinsic cardiac nervous system." These neurons form part of the autonomic nervous system, working independently of the brain to regulate the heart's functions. ICNs are embedded within the heart walls, forming a network of sensory and motor neurons. Sensory neurons detect changes in pressure, stretch, and chemical signals within the heart, while motor neurons regulate heart rate and contractility. Interestingly, ICNs interact directly with cardiac muscle cells, bypassing the traditional autonomic nervous system. This network communicates bidirectionally with the brain through the vagus nerve and other pathways, influencing heart rhythm, responses to stress, and overall heart health.

Food and the Heart's Neurons:

What we eat can significantly impact the health and function of ICNs. Here are some key examples:

Omega-3 fatty acids:?Studies have indicated that omega-3 fatty acids found in fatty fish, flaxseeds, and walnuts may have cardioprotective effects and contribute to improved heart health. These fatty acids may indirectly impact neuronal function within the heart.?Found in Flax Seeds, Chia Seeds and nuts,?omega-3s have been shown to improve ICN function,?reducing heart rate variability and protecting against arrhythmias.

Whole Grains and Plant-Based Diet for?Antioxidant-Rich Foods: Diets rich in whole grains, fruits, vegetables, nuts, seeds, and legumes have been linked to better heart health, which may indirectly benefit neuronal function in the heart.Antioxidants in fruits (berries, citrus fruits) and vegetables (leafy greens, tomatoes) exhibit anti-inflammatory properties, potentially reducing oxidative stress in the heart and supporting neuronal function.?Rich in antioxidants and anti-inflammatory compounds,?fruits and vegetables can help protect ICNs from damage and promote their function.

Healthy Fats: Unsaturated fats from sources like avocados, and nuts are associated with improved heart health and may support neuronal health within the heart.

Flavonoids:?Found in berries,?cocoa,?and tea,?flavonoids exhibit neuroprotective properties and may improve ICN communication.

Processed foods:?Diets high in saturated fat,?sugar,?and processed foods can contribute to inflammation and oxidative stress,?potentially harming ICNs and compromising heart health.

Research Paper Links: Impact of Food on Heart Neurons:

Research suggests that certain dietary patterns and nutrients can support heart health, indirectly influencing neuronal function in the heart. Ongoing Research continues to explore the intricate relationship between dietary components and heart health, potentially impacting neuronal function within the heart. Here are some researches that can be consulted for more information.

"Intrinsic Cardiac Neurons and the Gut-Heart Axis" by The Journal of Physiology:?https://pubmed.ncbi.nlm.nih.gov/27568996/

"The Role of Omega-3 Fatty Acids in Cardiac Health" by Nutrients:?https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4153275/

"Dietary Flavonoids and the Brain: Effects on Neurodegeneration" by Free Radical Biology and Medicine:?https://pubmed.ncbi.nlm.nih.gov/29577854/

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