What Is Heart Rate Variability, Does It Indicate Your  Well-Being?


Heart rate variability (HRV) is a measure of the variation in the time interval between heartbeats. It is typically measured in milliseconds and can be used as an indicator of a person's cardiovascular health.

HRV is influenced by the balance between the sympathetic (responsible for the "fight or flight" response) and parasympathetic (that promotes rest) branches of the autonomic nervous system.

HRV can be measured using a variety of methods, including electrocardiography (ECG), photoplethysmography (PPG), and accelerometry.

Low HRV is associated with increased risk of cardiovascular disease, including heart attack and stroke.

High HRV is generally considered a positive sign of cardiovascular health and is associated with good physical and mental health.

HRV can be affected by a variety of factors, including age, sex, physical activity level, and stress.

HRV can be used as a tool to assess the effectiveness of interventions such as exercise training, stress reduction techniques, and pharmacological treatment.

HRV can be used to monitor the progress of people with chronic conditions such as heart failure, hypertension, and diabetes.

HRV can be used to predict the risk of adverse outcomes in people with acute conditions such as acute coronary syndrome and sepsis.

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