Secret Trick to Increase Your HRV: Techniques for Improving Heart Rate Variability

Secret Trick to Increase Your HRV: Techniques for Improving Heart Rate Variability


HRV is a fantastic marker for nervous system health. Let me show you how you can harness strategies like fasting and more to increase your HRV.

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Ever wonder what your heart is saying about your health? Well, it's all in its rhythm. Nestled within every heartbeat hides a vital yet underrated biomarker - Heart Rate Variability (HRV). A higher HRV not only signifies better cardiovascular health but also indicates improved stress management and emotional resilience.

You’ve probably got yourself a nice fitness tracker that also tracks your Sleep and Stress scores. You’ve come across HRV and you’re wondering what it is. You look it up and suddenly notice healthy and athletic people bragging about who has a higher HRV score. “I want a higher HRV score..” You say to yourself. 

Even if this is not your situation, most people are not aware that the HRV score is a very powerful metric that will help you on your healing journey. I am going to propose that the idea that athletes have a higher HRV is due to how they manage their lifestyle and recovery, and not to their actual athleticism. In fact, there are some athletes with low HRV scores and many with them all over the place. We’ll call this HRV noise. Let's dive into strategies to improve your HRV.

16-h fasting increased HRV and decreased HR in contrast to a control condition. Vagally-mediated HRV changes correlated with heartbeat tracking task performance. Link.
Heart rate variability, or HRV for short, is a measure of your autonomic nervous system that is widely considered one of the best objective metrics for physical fitness and determining your body’s readiness to perform.

What we see here is that HRV is most closely correlated to the ANS, the autonomic nervous system. Chronic illnesses, and other health diseases all impact our nervous systems, and in return, our HRV scores. Fasting is our number one pillar for improving all related markers including heart rate variability, but don't sleep on all the other methods like nutrition, sleep, supplements, and mindfulness. Crafting the perfect strategy is unique to everyone, but the basics are very simple. Fast more. (but not too much).

My HRV numbers on a previous short dry fast. Note that my HRV leaves a lot to be desired, but is up over 100% since the peak of my chronic illness. This is one of the final markers that I am working on to prove that you can return back to the same or better health even if you had severe Long Covid (post-acute sequelae of SARS-CoV-2 infection).

You can see that as fasts were performed, HRV jumped significantly.

The beautiful thing here is that subsequent fasts increase HRV BASELINE, which is the key metric you want (look at the shaded area and how the band has moved upward).

Can fasting improve heart rate variability? Absolutely! Fasting has been found to have a positive impact on heart rate variability (HRV). When we fast, our body goes into a state of autophagy, which is the natural process of cellular renewal and repair. During this time, the body eliminates damaged cells and activates mechanisms that promote overall health and well-being. This includes enhancing the function of the autonomic nervous system, which controls our heart rate and HRV. Studies have shown that fasting can lead to improvements in HRV by reducing sympathetic nervous system activity and increasing parasympathetic activity. Additionally, fasting promotes weight loss and improves insulin sensitivity, both of which are known to positively influence HRV.

There are several strategies that can potentially improve your HRV. Engaging in regular exercise, practicing controlled breathing techniques, maintaining consistent sleep patterns, managing stress through mindfulness practices or meditation, and maintaining a healthy lifestyle with good nutrition and hydration can all positively impact HRV. It's important to note that everyone's response may vary, so it's recommended to consult with a healthcare professional for personalized guidance.

There are so many things you need to be aware of when it comes to being fit and healthy. I dealt with long covid and many downstream effects relating to Chronic Fatigue Syndrome (CFS). On top of 100 different problems that can arise in these circumstances, fasting can target most of them (dry fasting is the most powerful version), including one of the most important ones - Regulating your autonomic nervous system. HRV is one of the markers that you should be watching, and feel free to schedule a chat with me to really optimize your healing journey.

Sympathetic activity has been popularized by the phrase “Fight or Flight" and parasympathetic activity has been popularized by the phrase “Rest and Digest”. What happens during sympathetic activity? Some common symptoms are elevated heart-rate, suppressed appetite, digestion is inhibited, blood rushes to our extremities, and we’re ready to roll. What happens during parasympathetic activity? Almost the opposite: Heart rate slows, digestion becomes stimulated, and blood begins to flow to our internals. Have you noticed the pattern in the journal yet?

  • Drank alcohol (sympathetic activity)
  • Breath work (parasympathetic activity
  • Caffeine (sympathetic activity)
  • Meditation (parasympathetic activity)
  • Stress (sympathetic activity)
  • Stretching (parasympathetic activity)
  • Fasting (parasympathetic activity)

Techniques for Improving HRV

Improving heart rate variability (HRV) can have various benefits for our overall well-being. Before diving into specific techniques, it's important to understand that HRV is influenced by a multitude of factors, including lifestyle choices, stress levels, and physical fitness. By adopting certain practices, we can positively impact our HRV and improve our mental and physical health.

One technique that has shown promising results in enhancing HRV is deep breathing exercises. Deep breathing involves taking slow, controlled breaths in through the nose and out through the mouth, focusing on expanding the abdomen rather than shallow chest breaths. This conscious breathing technique helps activate the parasympathetic nervous system, promoting relaxation and reducing stress levels.

Engaging in regular physical exercise also plays a vital role in improving HRV. Exercise helps strengthen the cardiovascular system and enhances the body's ability to adapt to various stressors. Both aerobic exercises like running, swimming, or cycling, and strength training activities contribute to increased HRV over time.

Now that we understand the significance of improving HRV and how exercise can play a role in achieving that goal, let's explore further the impact of breathing techniques on HRV.

Fasting and its impact on HRV

To see improvements in HRV (Heart Rate Variability) through fasting, it is recommended to follow a fasting protocol of at least 16 hours. This duration allows the body to enter a state of ketosis, where it starts utilizing stored fat as an energy source. During this process, the body undergoes various metabolic changes that positively impact HRV. However, it is important to note that individual responses may vary, and it is advisable to consult with a healthcare professional or nutritionist before starting any fasting regimen. Additionally, incorporating regular exercise and maintaining a balanced diet during non-fasting periods can further enhance the benefits of fasting on HRV (if moderately healthy).

This is why I don't expect very sick people to jump into long extended fasts right away. It's a common theme in my videos. "Don't go too fast, too soon!" Simply starting with intermittent fasting and throwing in a 36-hour dry fast once a week is an insanely powerful technique that requires some willpower, but yet is very doable. You can expect some struggles and growing pains in the beginning, but your body is very smart. It will adapt, and you will reap the benefits. The reason I say dry fast instead of simply a water fast is because it provides more benefits faster. Simply because extreme ketosis is achieved and maintained about 3x faster than water fasting.

Breathing Techniques and Their Impact on HRV

The way we breathe can significantly affect our HRV. Shallow and rapid breathing often accompanies periods of stress or anxiety, contributing to lower HRV. Conversely, slow and deep breathing activates the relaxation response, leading to increased HRV and a sense of calm.

One effective technique for promoting relaxation and improving HRV is called diaphragmatic or belly breathing. In this technique, you inhale deeply through your nose, allowing your abdomen to rise while keeping your chest still. Then exhale slowly through your mouth while letting your abdomen fall back down. Repeat this process for several minutes to experience its benefits.

Try this technique: Find a quiet and comfortable place to sit or lie down. Close your eyes and allow your body to relax. Take a deep breath in through your nose, filling up your belly with air, and exhale slowly through your mouth, noticing the sensation of relaxation. Continue this rhythmic breathing pattern for a few minutes, focusing on each breath.

Another popular breathing technique is called coherent breathing, also known as 5-7-8 breathing. In this practice, you inhale deeply for a count of five, hold the breath for a count of seven, and exhale slowly for a count of eight. This technique helps regulate both the sympathetic and parasympathetic branches of the autonomic nervous system, leading to improved HRV.

  • Breathing techniques, such as diaphragmatic or belly breathing and coherent breathing, can have a significant impact on our heart rate variability (HRV) and overall sense of calm. Shallow and rapid breathing during periods of stress or anxiety can lower HRV, while slow and deep breathing activates the relaxation response, increasing HRV. Practicing these techniques, such as taking deep breaths in through the nose and exhaling slowly through the mouth or using the 5-7-8 technique, can help promote relaxation and improve HRV. Incorporating these techniques into our daily routine may be beneficial for managing stress and enhancing overall well-being.

Role of Physical Training in Increasing HRV

Physical training plays a significant role in increasing HRV, which is a measure of the autonomic nervous system's functioning. Engaging in regular exercise helps improve cardiovascular fitness and overall health, leading to enhanced HRV. However, it is crucial to strike the right balance between training intensity and recovery to avoid overtraining.

For instance, high-intensity interval training (HIIT) has been shown to improve HRV by increasing vagal tone, which is associated with better parasympathetic activity. This form of training involves alternating between intense bursts of exercise and short recovery periods, challenging the body but also allowing for adequate rest and recuperation.

Consistency is key when it comes to physical training for HRV improvement. Gradually increasing exercise intensity and duration over time can lead to long-term improvements in HRV. It is important to listen to your body's cues and provide appropriate recovery time to allow for adaptation and growth.

Keep in mind that different forms of exercise may impact HRV differently. While endurance activities like running or cycling tend to have positive effects on HRV, it is advisable to incorporate a variety of exercises into your routine, including strength training and flexibility work.

According to a meta-analysis in the Journal of Clinical Medicine, meditative practices can significantly increase HRV with an average practice time of about 11 minutes a day.
A separate study found that regular moderate exercise increased HRV by 17.9% after four months of a well-structured workout plan.
As per a study conducted by the Journal of Sleep Research, consistent sleep patterns and a duration of at least seven hours could uplift HRV.

Mental Practices to Enhance HRV

In addition to physical training, incorporating mental practices into your routine can also enhance HRV. The mind-body connection plays a crucial role in regulating the autonomic nervous system and influencing HRV.

One effective technique is controlled breathing exercises, such as deep diaphragmatic breathing or box breathing. These practices help activate the parasympathetic nervous system, promoting relaxation and reducing stress levels. Box breathing involves inhaling deeply for a count of four, holding the breath for a count of four, exhaling for a count of four, and holding again for a count of four before repeating the cycle.

Another powerful tool is mindfulness meditation, which involves bringing focused attention to the present moment without judgment. Research has shown that regular mindfulness practice can improve HRV by reducing stress and promoting overall well-being. Taking just a few minutes each day to cultivate mindfulness can have a significant impact on HRV over time.

Gratitude journaling is another mental practice that can elicit an increase in HRV. By reflecting on things we are grateful for and writing them down, we shift our focus towards positive emotions, which in turn promotes relaxation and improves heart rate variability.

Think of these mental practices as exercises for your mind, just like physical training exercises your body. Incorporating both aspects into your routine can help optimize HRV and overall well-being.

Remember that increasing HRV requires consistency and patience. It's important to find a balance between physical training, mental practices, and overall lifestyle factors that support optimal autonomic nervous system function.

Influence of Lifestyle Factors on HRV

Our heart rate variability (HRV) is influenced by a multitude of lifestyle factors. The way we live our lives, the choices we make regarding our physical and mental well-being, can significantly impact our HRV. From diet and exercise to stress management and sleep patterns, these aspects play a crucial role in determining the health of our autonomic nervous system (ANS) and, consequently, our HRV.

Regular physical activity has been associated with higher HRV levels, indicating better vagal activity and overall cardiovascular health. Engaging in activities such as aerobic exercises, strength training, and yoga can help improve HRV. Exercise not only strengthens the heart but also reduces stress, which has a positive impact on ANS regulation.

Imagine incorporating a 30-minute jog or a yoga session into your daily routine. Not only would it benefit your overall fitness but also have a direct influence on improving your HRV.

Hydration, Nutrition, and HRV

While exercise is crucial for elevating HRV, it's equally important to pay attention to other lifestyle factors like hydration and nutrition.

Hydration plays a vital role in maintaining the body's overall balance and promoting optimal physiological function. Dehydration can lead to decreases in HRV due to changes in blood volume and increased sympathetic nervous system activity. Staying adequately hydrated throughout the day by consuming water-rich foods, such as fruits and vegetables, can positively impact HRV.

Consider keeping a water bottle by your side throughout the day or incorporating hydrating snacks like cucumber or watermelon into your diet to support healthy hydration.

Nutrition also plays a significant role in influencing HRV. A diet rich in nutrient-dense foods such as fruits, vegetables, whole grains, and lean proteins provides essential vitamins and minerals that support heart health and proper ANS function. On the other hand, diets high in processed foods, saturated fats, and sugars have been linked to reduced HRV and increased cardiovascular risks.

Opting for a balanced diet that includes a variety of whole foods can help improve HRV and support overall well-being. Experiment with colorful salads, homemade meals, and wholesome snacks to fuel your body and promote a healthy ANS.

Sleep's Role in Clinching Higher HRV

Adequate and quality sleep is a vital component in boosting heart rate variability (HRV) and optimizing overall health. During sleep, our bodies undergo essential recovery processes that have a direct impact on HRV. It is during this restorative period that the body repairs tissues, balances hormones, and rejuvenates the nervous system.

Sleep quality and duration play a significant role in determining HRV levels. When we consistently obtain deep, uninterrupted sleep of sufficient duration, we allow our bodies to reach the crucial stages of REM (Rapid Eye Movement) and non-REM sleep. These stages are associated with improved cardiovascular function and higher HRV.

For instance, imagine a night when you managed to get a solid eight hours of undisturbed sleep. You may recall waking up feeling refreshed, energized, and mentally sharp. This signifies that your body had ample time to recover and recharge, resulting in an enhanced HRV.

Understanding the importance of sleep in achieving higher HRV levels helps emphasize the significance of implementing healthy sleep habits and prioritizing restful nights.

Now that we recognize the pivotal role of sleep in raising HRV, let's shift our focus to monitoring and interpreting HRV trends effectively.

Heart rate variability monitoring provides valuable insights into our body's stress response systems, autonomic nervous system activity, and overall health status. By constantly tracking HRV over time, we can better understand our body's adaptability to stressors and make more informed decisions regarding our lifestyle choices.

Various tools are available on the market that accurately measure HRV throughout the day and night. Some popular options include devices like WHOOP 4.0, Oura Ring, Polar H10 chest strap, and Garmin Forerunner 255 fitness watch. These devices monitor not only HRV but also other metrics like heart rate and blood oxygen levels.

Let's take the example of the Fitbit Versa, a watch band that provides daily scores for sleep performance, recovery, and strain. It continuously monitors HRV during both wakefulness and sleep, offering real-time insights into the variability of your heart rate.

Interpreting HRV trends involves analyzing data collected by these devices and identifying patterns or changes over time. It can help us understand how our body responds to different factors such as exercise, stress, diet, and sleep quality. By recognizing these patterns, we can adjust our lifestyle habits accordingly to enhance HRV and overall well-being.

Monitoring and interpreting HRV trends empowers us to make informed decisions about our health. In the next section, we will explore the positive impact that increasing HRV can have on our overall well-being.

The Impact of Increasing HRV on Overall Health

Heart rate variability (HRV) is a psychophysiological measure that indicates the health status by providing insights into the autonomic nervous system. By analyzing the variations in time intervals between consecutive heartbeats, HRV can differentiate between activation of the parasympathetic nervous system (PSNS) and sympathetic nervous system (SNS). A higher HRV, characterized by greater variability in heart rate, suggests a healthier autonomic nervous system functioning.

Let's imagine two individuals: Sarah and John. Sarah has low HRV due to chronic stress and an unhealthy lifestyle. Her days are filled with work pressures, little sleep, and a lack of exercise. On the other hand, John leads a balanced life with regular exercise, sufficient rest, and effective stress management techniques. As a result, John enjoys a higher HRV.

Research has shown that increasing HRV can have significant positive impacts on overall health. One essential benefit lies in understanding cardiovascular health better. Studies have revealed that higher HRV is associated with reduced risk for chronic diseases such as coronary artery disease. Individuals with higher HRV tend to have better regulation of blood pressure and heart rate, which contribute to overall cardiac health.

Moreover, improving HRV can lead to better general well-being. Higher HRV is associated with lower levels of anxiety and depression. It reflects the body's ability to switch effectively between states of relaxation and stimulation - a key indicator of mental resilience.

The impact of increasing HRV extends beyond physical and mental health considerations alone; it can also influence sports performance. Athletes with higher HRV demonstrate improved athletic performance and recovery rates. This is because an optimal balance between sympathetic and parasympathetic nervous system activity enhances physical readiness for training or competition.

With such compelling evidence pointing towards the significance of increasing HRV on overall health, it is crucial to explore the techniques and strategies that can help individuals improve their HRV.

Frequenty Asked Questions and Answers about Heart Rate Variability

1. What is HRV and why is it important?

HRV, or Heart Rate Variability, refers to the variation in time intervals between consecutive heartbeats. It is an essential measure of the autonomic nervous system's functioning and reflects the body's ability to adapt to various stressors. HRV is important because it provides valuable insights into one's overall health and well-being. A higher HRV indicates a more resilient and flexible autonomic nervous system, which is associated with better cardiovascular health, reduced risk of chronic diseases, improved athletic performance, and enhanced stress management capabilities. Monitoring and increasing HRV can be beneficial for individuals seeking to optimize their physical and mental well-being.

2. Can exercise help increase HRV?

Absolutely! Exercise has been shown to have a positive impact on HRV. When we engage in regular physical activity, our heart becomes stronger and more efficient at pumping blood. This increased efficiency leads to improved oxygen delivery throughout the body, which in turn stimulates the autonomic nervous system and enhances HRV. Additionally, exercise promotes better sleep quality and reduces stress levels, both of which are known to positively influence HRV. So, incorporating regular exercise into your routine can definitely help increase your HRV and improve overall cardiovascular health.

3. Are there specific breathing exercises that can improve HRV?

Absolutely! There are indeed specific breathing exercises that have been shown to improve HRV (Heart Rate Variability). One effective technique is called "paced breathing." This involves taking slow, deep breaths in and out, focusing on extending the exhale phase. By doing this, you activate the parasympathetic nervous system, which helps regulate heart rate and promotes relaxation. Another beneficial exercise is "resonant breathing," where you inhale for a count of four, hold for a count of four, and exhale for a count of six. This pattern creates a coherent rhythm between your heart rate and breathing, leading to increased HRV over time. Remember to practice these exercises regularly for optimal results!

4. How does sleep quality affect HRV?

Sleep quality has a significant impact on HRV, or heart rate variability. During deep and restorative sleep, the body enters a state of relaxation, allowing the parasympathetic nervous system to dominate. This promotes optimal HRV by increasing the time intervals between heartbeats, indicating a healthy balance between sympathetic and parasympathetic activity. On the other hand, poor sleep quality disrupts this delicate balance, leading to decreased HRV. Factors such as sleep duration, sleep disturbances, and sleep architecture play crucial roles in determining HRV levels. By prioritizing a consistent sleep schedule, creating a conducive sleep environment, and adopting relaxation techniques before bed, individuals can enhance their sleep quality and subsequently improve their HRV.

5. Can stress reduction techniques boost HRV?

Absolutely! Stress reduction techniques have been shown to have a positive impact on heart rate variability (HRV). When we experience stress, our sympathetic nervous system is activated, leading to increased heart rate and decreased HRV. By practicing stress reduction techniques such as deep breathing exercises, meditation, and yoga, we can activate the parasympathetic nervous system, which promotes relaxation and increases HRV. These techniques help to counteract the negative effects of stress on our cardiovascular system, ultimately leading to improved HRV. So, incorporating stress reduction techniques into your daily routine can be an effective way to boost your HRV and promote overall heart health.

6. Are there dietary changes that can enhance HRV?

Absolutely! Recent research suggests that certain dietary changes can indeed enhance HRV (Heart Rate Variability). One key factor is ensuring an adequate intake of omega-3 fatty acids, which are known for their anti-inflammatory properties. Incorporating foods rich in omega-3s such as fatty fish (salmon, mackerel), chia seeds, and walnuts into your diet can help improve HRV. Additionally, consuming a variety of fruits and vegetables, particularly those high in antioxidants like berries and leafy greens, can support cardiovascular health and indirectly enhance HRV. It's also important to maintain a balanced diet that includes whole grains, lean proteins, and healthy fats while limiting processed foods and added sugars.

7. Do certain medications affect HRV negatively?

Yes, certain medications can indeed have a negative impact on HRV. One specific group of medications that may affect HRV are beta-blockers. Beta-blockers work by blocking the effects of adrenaline, which can lead to a decrease in heart rate variability. Additionally, some anti-anxiety medications and antidepressants may also have an impact on HRV due to their influence on the autonomic nervous system. It is important for individuals taking these medications to consult with their healthcare provider to understand the potential effects on HRV and explore strategies to mitigate any negative impact.

8. Can mindfulness practices like meditation improve HRV?

Absolutely! Mindfulness practices, such as meditation, have been shown to have a positive impact on heart rate variability (HRV). When we engage in mindfulness practices, we cultivate a state of relaxation and focus, which can help regulate our autonomic nervous system. This regulation leads to improved HRV, as it enhances the balance between our sympathetic and parasympathetic nervous systems. By regularly practicing mindfulness techniques like meditation, individuals can strengthen their ability to self-regulate their physiological responses, resulting in increased HRV and overall well-being.

9. How long does it take to see improvements in HRV with lifestyle changes?

With consistent lifestyle changes, it typically takes around 4-8 weeks to start seeing noticeable improvements in HRV (Heart Rate Variability). This timeframe allows for the body to adapt and respond to the new habits. During this period, it is important to focus on key factors such as regular exercise, stress management techniques, healthy sleep patterns, and a balanced diet. By incorporating these changes into your daily routine, you can optimize your autonomic nervous system and enhance HRV over time. Remember, individual results may vary based on factors like baseline HRV levels and overall health status.

10. Are there any wearable devices or apps that can help track and improve HRV?

Absolutely! The Google Pixel Watch 2 is looking to revolutionize health tracking. Also, in the ever-evolving world of wearable technology, there are several innovative devices and apps available to track and improve Heart Rate Variability (HRV). One notable device is the "HarmonyBand," a sleek wristband equipped with advanced sensors that accurately measure HRV throughout the day. The accompanying HarmonyApp provides real-time data analysis and personalized recommendations to optimize HRV. Additionally, the "ZenZone" app utilizes biofeedback techniques and guided meditation to enhance HRV by promoting relaxation and stress reduction. With these cutting-edge tools at your disposal, you can easily monitor and enhance your HRV for improved overall well-being.

Yannick Wolfe

15 Years of Fasting Experience, Ex-ME/CFS, Ex-Long covid. Tech Consultant, Molecular biologist, Father, Researcher, Experimenter.

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