I have had this in the I got to read this One pile too long, more in line with who we want to be going forward.

Traditionally, the study of communication pathways between the head and heart has been approached from a rather one-sided perspective, with scientists focusing primarily on the heart’s responses to the brain’s commands. We have learned, however, that communication between the heart and brain actually is a dynamic, ongoing, two-way dialogue, with each organ continuously influencing the other’s function. 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). Communication along all these conduits significantly affects the brain’s activity. Moreover, our research shows that messages the heart sends to the brain also can affect performance.

The heart communicates with the brain and body in four ways:
1.Neurological communication (nervous system)
2.Biochemical communication (hormones)
3.Biophysical communication (pulse wave)
4.Energetic communication (electromagnetic fields)

Some of the first researchers in the field of psychophysiology to examine the interactions between the heart and brain were John and Beatrice Lacey. During 20 years of research throughout the 1960s and ’70s, they observed that the heart communicates with the brain in ways that significantly affect how we perceive and react to the world.

In physiologist and researcher Walter Bradford Cannon’s view, when we are aroused, the mobilizing part of the nervous system (sympathetic) energizes us for fight or flight, which is indicated by an increase in heart rate, and in more quiescent moments, the calming part of the nervous system (parasympathetic) calms us down and slows the heart rate. Cannon believed the autonomic nervous system and all of the related physiological responses moved in concert with the brain’s response to any given stimulus or challenge. Presumably, all of our inner systems are activated together when we are aroused and calm down together when we are at rest and the brain is in control of the entire process.

Cannon also introduced the concept of homeostasis. Since then, the study of physiology has been based on the principle that all cells, tissues and organs strive to maintain a static or constant steady-state condition. However, with the introduction of signal-processing technologies that can acquire continuous data over time from physiological processes such as heart rate (HR), blood pressure (BP) and nerve activity, it has become abundantly apparent that biological processes vary in complex and nonlinear ways, even during so-called steady-state conditions.

These observations have led to the understanding that healthy, optimal function is a result of continuous, dynamic, bidirectional interactions among multiple neural, hormonal and mechanical control systems at both local and central levels. In concert, these dynamic and interconnected physiological and psychological regulatory systems are never truly at rest and are certainly never static.

For example, we now know that the normal resting rhythm of the heart is highly variable rather than monotonously regular, which was the widespread notion for many years. This will be discussed further in the section on heart rate variability (HRV).

more here with link

https://reflectionsoflifeonarock.blogspot.com/2025/02/science-of-heart-exploring-role-of.html