Why is My HRV So Low?

Heart rate variability (HRV) is a measure of the variation in time between successive heartbeats. This measure has been shown to be a useful indicator of overall health, as reduced HRV has been linked to various health problems, including cardiovascular disease, diabetes, and depression. 

If you've been monitoring your HRV and have found that it is consistently low, you may be wondering why this is the case. In this blog post, we'll explore some of the possible reasons why your HRV may be low and what you can do about it.

Chronic Stress

One of the most common reasons for low HRV is chronic stress. When we experience stress, our sympathetic nervous system is activated, leading to a faster heart rate and reduced HRV. This is a natural response to stress, but if stress is chronic or long-lasting, it can lead to health problems. 

Chronic stress can be caused by a variety of factors, including work, relationships, financial problems, and health issues. If you think chronic stress may be causing your low HRV, it's important to take steps to reduce your stress levels. Techniques like deep breathing, meditation, and exercise can be helpful in reducing stress and improving HRV.

Sleep Hygiene

Another possible cause of low HRV is a lack of sleep, or poor sleep quality (e.g. restless, waking up often). When we don't get enough sleep, our body doesn't have time to recover and repair itself, leading to a variety of health problems, including reduced HRV. Poor sleep hygiene can also cause stress, which as we mentioned earlier, can also lead to reduced HRV. 

If you're having trouble sleeping, there are several things you can do to improve your sleep quality. These include establishing a regular sleep schedule, creating a relaxing bedtime routine, and avoiding caffeine and alcohol before bed.

Poor Diet

Your diet can also have an impact on your HRV. A diet that is high in sugar, processed foods, and saturated fats has been linked to reduced HRV. On the other hand, a diet that is rich in fruits, vegetables, whole grains, and lean proteins has been shown to improve HRV. 

If you're not sure if your diet is contributing to your low HRV, consider keeping a food diary for a few days to track what you're eating. You may also want to consult with a registered dietitian to get personalized recommendations for improving your diet.

Low Physical Fitness/Capacity

Finally, low physical activity, or low capacity for physical activity, can also lead to reduced HRV. Regular exercise has been shown to improve HRV, while a sedentary lifestyle has been linked to reduced HRV. If you're not currently exercising, it's important to start slowly and gradually increase your activity level. Aim for at least 30 minutes of moderate-intensity exercise most days of the week. This can include activities like walking, cycling, swimming, or dancing. The key is to find a form of movement that works for you.

Conclusion

If your HRV is consistently low, there are several possible reasons why this may be the case. Chronic stress, poor sleep hygiene, poor diet, and low physical activity are all factors that can contribute to reduced HRV. By making changes in these areas, you may be able to improve your HRV and reduce your risk of developing long-term health problems. Remember, it's always a good idea to talk to your healthcare provider before making any significant changes to your lifestyle or starting a new exercise program.

Looking for ways to better manage your health? HealthQb helps sustainably improve your health by measuring HRV. However, unlike most solutions currently available, HealthQb also identifies the specific areas of your health to focus on in order to improve HRV and provides tailored recommendations based on your data. Health coaching is also available to help you understand the data and hold you accountable.

If you’re ready to start feeling your best, get in touch today!

Sources

Tarvainen, M. P., Niskanen, J. P., Lipponen, J. A., Ranta-aho, P. O., & Karjalainen, P. A. (2014). Kubios HRV – Heart rate variability analysis software. Computational methods and programs in biomedicine, 113(1), 210-220.

Shaffer, F., & Ginsberg, J. P. (2017). An overview of heart rate variability metrics and norms. Frontiers in public health, 5, 258.

Thayer, J. F., & Lane, R. D. (2007). The role of vagal function in the risk for cardiovascular disease and mortality. Biological psychology, 74(2), 224-242.

McCraty, R., Shaffer, F., & Zerr, C. L. (2014). Heart rate variability coherence: a new tool for stress reduction, disease prevention, and rehabilitation. Stress and Health, 30(3), 159-164.

Pal, G. K., & Pal, P. (2011). Role of heart rate variability in prognosis and diagnosis of cardiac and non-cardiac diseases. Indian journal of physiology and pharmacology, 55(2), 101-111.

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HRV and Sleep: Everything You Need to Know

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Heart Rate Variability and Its Connection to Your Health