Author: nossobit@gmail.com
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You Can Hear Your Heart — But Are You Observing It?
Why trust is more durable than promises You can hear your heart right now. But do you know if it sounds the same as yesterday? Most digital health products begin with a promise. Better sleep. Lower stress. Early detection. Prevention. The promise is often what attracts attention. But over time, it can also become the…
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Why Medical Students Should Record Their Own Heart Sounds
A gap in medical training Medical students spend years learning to recognize heart sounds —yet most of them have never recorded their own. Traditional training relies on two main approaches: listening to patients in clinical settings and studying curated or simulated audio. Both are valuable. But they share a limitation: they rarely give students a…
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Why the World Needs Cardiomic When Smartphone Stethoscopes Already Exist
A fair question — and the right place to start As digital health evolves, a natural question emerges: If apps already turn smartphones into stethoscopes, why does Cardiomic exist? This is not just a valid question.It is the question. Because answering it reveals a fundamental distinction in how we approach the heart. What already exists…
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Can Your Smartphone Hear Your Heartbeat?
A new way to observe the rhythm of the heart The human heart beats roughly 100,000 times every day. Most of these beats occur without our awareness. We notice the heart only in specific situations—during intense exercise, moments of stress, or when a physician listens through a stethoscope. For centuries, observing the heart required specialized…
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Why Observing Your Physiology Matters
Understanding the signals that constantly emerge from the body The human body constantly produces signals. Every heartbeat, breath, and physiological adjustment generates patterns that reflect how the body is functioning. Most of these signals remain invisible in everyday life. They occur continuously, but without instruments they are difficult to observe directly. Advances in digital technology…
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What Is a Phonocardiogram?
Visualizing heart sounds as a signal over time A phonocardiogram is a graphical representation of the acoustic signals produced by the heart. Each heartbeat generates mechanical vibrations when heart valves open and close. These vibrations propagate through the chest and can be detected as sound. When these sounds are captured with a sensor and plotted…
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What Is Heart Rhythm Coherence?
When heart rhythm patterns become more ordered and synchronized The rhythm of the heart constantly fluctuates as the body adapts to internal physiological processes. These variations are influenced by breathing, the autonomic nervous system, and other regulatory mechanisms. In some situations, these rhythm fluctuations can organize into more regular and structured patterns. When this happens,…
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What Is Heart Rate Variability (HRV)?
Understanding the natural variability in the timing between heartbeats Heart Rate Variability, commonly known as HRV, refers to the natural variation in the timing between consecutive heartbeats. Although the heart often feels steady when we place a hand on the chest, the intervals between beats are constantly changing. These small fluctuations reflect the dynamic regulation…
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How Breathing Influences Your Heart Rhythm
The natural connection between breathing and the timing of heartbeats Breathing and heart rhythm are closely connected. Each breath subtly influences the timing of heartbeats through interactions with the autonomic nervous system. This relationship means that the rhythm of the heart naturally changes as we inhale and exhale. These small changes are not random. They…
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Heart Sounds: What Your Heart Is Actually Telling You
Understanding the acoustic signals produced by every heartbeat Every heartbeat produces mechanical movements inside the heart. As valves open and close, they generate vibrations that propagate through the surrounding tissues of the chest. These vibrations can be detected as sound. When doctors listen to the heart using a stethoscope, they are observing these acoustic signals.…