{"id":5887,"date":"2026-03-31T15:09:27","date_gmt":"2026-03-31T15:09:27","guid":{"rendered":"https:\/\/regenerated.health\/hrv-training\/"},"modified":"2026-06-25T14:23:39","modified_gmt":"2026-06-25T14:23:39","slug":"hrv-training","status":"publish","type":"post","link":"https:\/\/regenerated.com\/blog\/hrv-training\/","title":{"rendered":"&#8220;Heart Rate Variability Training: How HRV Biofeedback Improves Stress Resilience and Health&#8221;"},"content":{"rendered":"<div class=\"at-a-glance\">\n<h2>At a Glance<\/h2>\n<ul>\n<li>Heart rate variability (HRV) measures the beat-to-beat variation in your heart rate, and higher HRV generally indicates better autonomic nervous system flexibility and stress resilience<\/li>\n<li>HRV biofeedback works by training you to breathe at your personal resonance frequency (usually 4.5-6.5 breaths per minute), which maximizes the natural oscillation between sympathetic and parasympathetic nervous system activity [1]<\/li>\n<li>Clinical trials support HRV training for anxiety disorders, PTSD, hypertension, asthma, depression, and athletic performance recovery [2]<\/li>\n<li>Consumer wearables (Oura Ring, Garmin, Apple Watch, WHOOP) now track HRV continuously, making it possible to monitor your baseline and see the effects of training over time<\/li>\n<li>Most HRV biofeedback protocols run 10 sessions with daily home practice, and benefits often persist after formal training ends<\/li>\n<\/ul>\n<\/div>\n<h2>What Heart Rate Variability Actually Is<\/h2>\n<p>Your heart does not beat like a metronome. Even when your pulse reads &#8220;70 beats per minute,&#8221; the actual intervals between beats vary constantly. One beat might come 0.85 seconds after the previous one, the next at 0.92 seconds, the next at 0.78 seconds. These tiny fluctuations are heart rate variability.<\/p>\n<p>This variation is not a sign that something is wrong. It is a sign that your autonomic nervous system is responsive and flexible. Your sympathetic nervous system (the &#8220;gas pedal&#8221;) speeds the heart up, and your parasympathetic nervous system, working through the vagus nerve (the &#8220;brake&#8221;), slows it down. In a healthy system, these two branches are constantly making micro-adjustments, producing a dynamic, variable heart rate [3].<\/p>\n<p>When HRV is high, your nervous system is nimble. It can ramp up quickly when you need energy and calm down quickly when the threat passes. When HRV is low, your system has lost this flexibility. It gets stuck in one gear, typically an overly activated sympathetic state. Low HRV is associated with chronic stress, anxiety, depression, cardiovascular disease, inflammation, and reduced recovery capacity [4].<\/p>\n<h2>Why HRV Matters for Health<\/h2>\n<p>The research connecting HRV to health outcomes is large and consistent. Here is what we know.<\/p>\n<h3>Cardiovascular Health<\/h3>\n<p>Low HRV is an independent predictor of cardiovascular events and mortality after heart attack. The autonomic imbalance reflected by low HRV (excessive sympathetic tone, insufficient vagal tone) promotes arrhythmias, hypertension, and atherosclerotic progression [5]. This is not a minor statistical association. The Task Force of the European Society of Cardiology formally recognized HRV as a clinical risk stratification tool in 1996, and subsequent research has only strengthened this position.<\/p>\n<h3>Mental Health<\/h3>\n<p>People with anxiety disorders, depression, and PTSD consistently show lower HRV than healthy controls [6]. The polyvagal theory, developed by Stephen Porges, proposes that vagal tone (reflected in HRV) is fundamental to emotional regulation and social engagement. When vagal tone is low, the nervous system remains biased toward threat detection, which manifests as anxiety, hypervigilance, and emotional reactivity.<\/p>\n<h3>Inflammation<\/h3>\n<p>The vagus nerve has a direct anti-inflammatory role through what is called the &#8220;cholinergic anti-inflammatory pathway.&#8221; Higher vagal tone (reflected in higher HRV) is associated with lower levels of inflammatory markers like C-reactive protein and interleukin-6 [7]. This connection helps explain why HRV training can influence conditions that involve systemic inflammation, including chronic pain syndromes.<\/p>\n<h3>Athletic Performance and Recovery<\/h3>\n<p>Athletes and sports scientists have embraced HRV monitoring because it provides an objective window into recovery status. Overtraining, inadequate sleep, and accumulated stress all reduce HRV. Monitoring morning HRV allows athletes to adjust training intensity based on their nervous system&#8217;s readiness, reducing the risk of overtraining and improving long-term performance [8].<\/p>\n<h2>How HRV Biofeedback Works: Resonance Frequency Breathing<\/h2>\n<p>The core mechanism of HRV biofeedback is deceptively simple. You breathe at a specific rate, and your HRV increases dramatically.<\/p>\n<p>Here is why this works. When you inhale, your heart rate speeds up slightly (sympathetic activation). When you exhale, it slows down (parasympathetic activation via the vagus nerve). This is called respiratory sinus arrhythmia, and it is a normal, healthy phenomenon. The slower you breathe, the more pronounced this oscillation becomes, because each breath has more time to exert its influence on heart rate [9].<\/p>\n<p>At one particular breathing rate, unique to each individual, the oscillation reaches its maximum amplitude. This is your resonance frequency. When you breathe at resonance frequency, the cardiovascular system enters a state where the natural oscillations of blood pressure regulation (called baroreflex oscillations) synchronize with your breathing rhythm. The result is large, coherent HRV waves that exercise and strengthen the baroreflex, the feedback loop that regulates blood pressure and autonomic balance [1].<\/p>\n<p>Think of it like pushing a child on a swing. If you push at random intervals, the swing barely moves. If you push at exactly the right frequency, the swing arcs higher and higher with minimal effort. Resonance frequency breathing is pushing your cardiovascular &#8220;swing&#8221; at exactly the right tempo.<\/p>\n<h2>The Standard HRV Biofeedback Protocol<\/h2>\n<p>The most widely studied HRV biofeedback protocol was developed by Paul Lehrer and colleagues. It typically unfolds as follows [10].<\/p>\n<h3>Session 1: Finding Your Resonance Frequency<\/h3>\n<p>A heart rate sensor (usually an ear clip or finger sensor connected to a computer) monitors your heart rate in real time. The therapist has you breathe at several different rates: 6.5 breaths per minute, 6.0, 5.5, 5.0, and 4.5. At each rate, your HRV amplitude is measured. The rate that produces the highest HRV amplitude is your resonance frequency.<\/p>\n<p>Most people land between 5.0 and 6.5 breaths per minute, though some fall outside this range. This assessment takes about 20-30 minutes and only needs to be done once.<\/p>\n<h3>Sessions 2-10: Practicing at Resonance Frequency<\/h3>\n<p>During subsequent sessions, you breathe at your identified resonance frequency while watching a real-time display of your HRV. The display typically shows a waveform, and your goal is to produce tall, smooth, regular waves. The therapist coaches you on breathing technique: relaxed abdominal breathing, equal or slightly extended exhalation, and minimal effort.<\/p>\n<p>Over sessions, most people&#8217;s HRV amplitude at resonance frequency increases. The baroreflex gets stronger with practice, just as a muscle gets stronger with exercise. The therapist may also introduce techniques for using resonance frequency breathing in daily life: during stressful situations, before sleep, or during pain flares [11].<\/p>\n<h3>Home Practice<\/h3>\n<p>Daily home practice is a critical part of the protocol. Most programs prescribe 20 minutes of resonance frequency breathing per day, split into two 10-minute sessions if needed. Some practitioners provide a home HRV biofeedback device; others simply have patients use a pacing app (a visual or auditory cue that guides breathing at the prescribed rate) and practice without monitoring.<\/p>\n<h2>Clinical Evidence: What HRV Training Can Do<\/h2>\n<h3>Anxiety Disorders<\/h3>\n<p>Multiple randomized controlled trials have demonstrated that HRV biofeedback significantly reduces anxiety symptoms. A 2021 meta-analysis of 18 studies found that HRV biofeedback produced moderate to large reductions in both state and trait anxiety, with effects persisting at follow-up assessments [12]. The mechanism appears to involve both direct autonomic rebalancing (increasing parasympathetic tone) and improved interoceptive awareness (learning to perceive and regulate internal physiological states).<\/p>\n<p>For generalized anxiety disorder specifically, HRV biofeedback has shown promise as both a standalone intervention and an adjunct to cognitive behavioral therapy.<\/p>\n<h3>PTSD<\/h3>\n<p>PTSD involves a persistent state of autonomic hyperarousal, with low HRV and excessive sympathetic activation. HRV biofeedback directly targets this physiology. A randomized trial in military veterans with PTSD found that 10 sessions of HRV biofeedback significantly reduced PTSD symptoms compared to treatment as usual, with improvements maintained at 3-month follow-up [13].<\/p>\n<p>The appeal for PTSD treatment is that HRV biofeedback does not require patients to revisit traumatic memories (as exposure-based therapies do), making it accessible to patients who are unable or unwilling to engage in traditional trauma-focused therapy. It can also serve as a preparatory intervention, stabilizing the autonomic nervous system before exposure therapy begins.<\/p>\n<h3>Hypertension<\/h3>\n<p>Because HRV biofeedback strengthens the baroreflex (which regulates blood pressure), it has logical applications for hypertension. A systematic review found that HRV biofeedback produced clinically meaningful reductions in blood pressure, with an average systolic reduction of approximately 5-8 mmHg and diastolic reduction of 3-5 mmHg in hypertensive participants [14]. These effects are modest but comparable to what a single blood pressure medication achieves.<\/p>\n<p>HRV biofeedback is not a replacement for antihypertensive medication in people with significant hypertension, but it may be a useful adjunct, particularly for people with stage 1 hypertension or white coat hypertension.<\/p>\n<h3>Asthma<\/h3>\n<p>An interesting and well-supported application. Lehrer&#8217;s group demonstrated in a randomized trial that HRV biofeedback reduced asthma symptoms, improved pulmonary function, and allowed participants to reduce their steroid inhaler use [15]. The proposed mechanism involves improved autonomic regulation of airway smooth muscle tone. This remains one of the cleaner demonstrations of HRV biofeedback producing measurable physiological changes beyond subjective symptom improvement.<\/p>\n<h3>Athletic Performance and Recovery<\/h3>\n<p>While the evidence here is still building, several studies have shown that HRV-guided training (adjusting workout intensity based on morning HRV readings) produces superior fitness outcomes compared to fixed training schedules [16]. Athletes who trained hard on high-HRV days and recovered on low-HRV days showed greater improvements in VO2max and time trial performance.<\/p>\n<p>HRV biofeedback training (not just monitoring) has also shown potential for improving pre-competition anxiety and enhancing recovery between training sessions, though the literature in this area consists primarily of smaller studies and case series.<\/p>\n<h3>Depression<\/h3>\n<p>Preliminary evidence suggests that HRV biofeedback can reduce depressive symptoms, particularly in patients with comorbid anxiety. A 2020 randomized trial found that 5 weeks of HRV biofeedback produced significant reductions in depression scores compared to a control group, with improvements in both mood and cognitive function [17]. The relationship between depression and low vagal tone is well-established, providing a clear physiological rationale for this approach.<\/p>\n<h2>Wearable Devices for HRV Monitoring<\/h2>\n<p>Consumer wearables have made HRV tracking accessible to anyone willing to wear a device. Here is what the major players offer and how accurate they are.<\/p>\n<h3>Oura Ring<\/h3>\n<p>The Oura Ring measures HRV during sleep using photoplethysmography (optical sensors on the finger). It provides overnight HRV averages, HRV trends, and a &#8220;readiness score&#8221; that incorporates HRV along with sleep quality, body temperature, and resting heart rate. Finger-based optical HRV readings are generally more accurate than wrist-based readings due to stronger arterial pulsation in the fingers [18]. The Oura Ring is particularly good for tracking long-term HRV trends but does not provide real-time biofeedback during waking hours.<\/p>\n<h3>Garmin, Apple Watch, and WHOOP<\/h3>\n<p>Higher-end Garmin watches (Fenix, Forerunner 955\/965, Venu series) track HRV overnight and provide a morning status contextualizing your HRV against your personal baseline. Garmin&#8217;s wrist-based optical HRV has been validated against chest strap references and performs reasonably well for trend tracking [19].<\/p>\n<p>Apple Watch records HRV periodically throughout the day (displayed as SDNN). It is best for long-term trends rather than real-time training, though third-party apps like HRV4Training can use the Apple Watch sensor for structured sessions.<\/p>\n<p>WHOOP measures HRV during the last slow-wave sleep cycle (when readings are most stable) and provides a recovery percentage incorporating HRV, resting heart rate, respiratory rate, and sleep performance. It is well-regarded among athletes and has been used in published research [20].<\/p>\n<h3>Chest Strap Heart Rate Monitors<\/h3>\n<p>For the most accurate readings during active biofeedback practice, a Bluetooth chest strap (such as the Polar H10) paired with a biofeedback app remains the gold standard. Chest straps detect electrical signals (similar to ECG) rather than optical pulses, providing more precise R-R interval data.<\/p>\n<h3>A Note on HRV Numbers<\/h3>\n<p>HRV varies enormously between individuals based on age, fitness, genetics, and measurement conditions. A 25-year-old athlete might have an overnight RMSSD (root mean square of successive differences, the most common HRV metric for wearables) of 80-120 ms, while a healthy 55-year-old might sit at 25-40 ms. Comparing your HRV to someone else&#8217;s is meaningless. What matters is your personal trend over weeks and months [21].<\/p>\n<h2>Coherence Training: HeartMath and Related Approaches<\/h2>\n<p>HeartMath is a specific approach to HRV training that emphasizes &#8220;cardiac coherence,&#8221; a state where HRV, breathing, and blood pressure oscillations become synchronized into a smooth, sine-wave-like pattern. The HeartMath protocol combines slow breathing (typically around 5-6 breaths per minute) with positive emotion focus (recalling feelings of gratitude, appreciation, or compassion) [22].<\/p>\n<p>Published research from the HeartMath Institute shows that coherence training reduces cortisol, increases DHEA, improves cognitive performance under stress, and reduces anxiety symptoms. Their Inner Balance device provides a consumer-friendly way to practice with real-time feedback.<\/p>\n<p>The main difference from the Lehrer resonance frequency protocol is the emotional focus. The Lehrer protocol is more purely physiological, while HeartMath adds an explicit emotional component. Both increase HRV and improve autonomic regulation, and neither has proven superior for most applications.<\/p>\n<h2>Practical Tips for Getting Started<\/h2>\n<p>If you want to begin HRV training, here is a practical roadmap.<\/p>\n<p><strong>1. Establish your baseline.<\/strong> Track HRV with a wearable for at least 2 weeks before starting any training. HRV fluctuates daily based on sleep, alcohol, exercise, and stress, so look at the trend rather than any single reading.<\/p>\n<p><strong>2. Find your resonance frequency.<\/strong> Work with a practitioner if possible. Otherwise, experiment with breathing rates between 4.5 and 7 breaths per minute using a pacer app. For most people, 6 breaths per minute (5-second inhale, 5-second exhale) is a good starting point.<\/p>\n<p><strong>3. Practice 10-20 minutes daily.<\/strong> Morning practice sets autonomic tone for the day, but consistency matters more than timing. Use a pacer app or biofeedback device.<\/p>\n<p><strong>4. Track your progress.<\/strong> Over 4-8 weeks of consistent practice, most people see a measurable upward trend in baseline HRV along with better sleep, reduced anxiety, and faster stress recovery.<\/p>\n<p><strong>5. Integrate into daily life.<\/strong> The real payoff comes when resonance frequency breathing becomes a tool you reach for throughout the day: before a stressful meeting, during a pain flare, before sleep.<\/p>\n<h2>Who Should Be Cautious<\/h2>\n<p>HRV biofeedback is generally very safe, but a few populations should approach it with awareness:<\/p>\n<ul>\n<li><strong>People with panic disorder:<\/strong> Slow breathing and heightened body awareness can sometimes trigger panic attacks in people prone to them. Working with a therapist who can manage this possibility is recommended.<\/li>\n<li><strong>People with cardiac arrhythmias:<\/strong> Certain arrhythmias can produce misleading HRV readings. If you have a diagnosed arrhythmia, consult your cardiologist before using HRV as a health metric or training target.<\/li>\n<li><strong>People with severe respiratory conditions:<\/strong> Slow breathing rates may be difficult or uncomfortable for people with significant lung disease. The breathing rate can usually be adjusted to accommodate, but professional guidance is advisable.<\/li>\n<\/ul>\n<h2>The Bottom Line<\/h2>\n<p>HRV training is one of the most evidence-backed biofeedback modalities available. It targets a fundamental aspect of health (autonomic nervous system regulation) that influences stress, pain, mood, cardiovascular function, inflammation, and recovery. The technology is accessible, the practice is straightforward, and the investment in time is modest: 10-20 minutes of daily breathing.<\/p>\n<p>What makes HRV training particularly appealing is that it gives you an objective, trackable metric for something that usually feels invisible. You can watch your HRV trend upward over weeks and months and know that your nervous system is becoming more resilient. That combination of proven benefit and visible progress is hard to find in health interventions.<\/p>\n<h2>Related Reading<\/h2>\n<ul>\n<li><a href=\"\/blog\/biofeedback-therapy\/\">Biofeedback Therapy: Complete Guide<\/a><\/li>\n<li><a href=\"\/blog\/biofeedback-chronic-pain\/\">Biofeedback for Chronic Pain<\/a><\/li>\n<li><a href=\"\/blog\/tmj-and-neck-pain\/\">TMJ and Neck Pain: The Jaw-Neck Connection<\/a><\/li>\n<li><a href=\"\/blog\/tmj-causes\/\">TMJ Causes: Bruxism, Stress, and More<\/a><\/li>\n<\/ul>\n<h2>References<\/h2>\n<ol>\n<li>Lehrer PM, Gevirtz R. &#8220;Heart rate variability biofeedback: how and why does it work?&#8221; Front Psychol. 2014;5:756. doi:10.3389\/fpsyg.2014.00756<\/li>\n<li>Gevirtz R. &#8220;The promise of heart rate variability biofeedback: evidence-based applications.&#8221; Biofeedback. 2013;41(3):110-120. doi:10.5298\/1081-5937-41.3.01<\/li>\n<li>Shaffer F, Ginsberg JP. &#8220;An overview of heart rate variability metrics and norms.&#8221; Front Public Health. 2017;5:258. doi:10.3389\/fpubh.2017.00258<\/li>\n<li>Thayer JF, Yamamoto SS, Brosschot JF. &#8220;The relationship of autonomic imbalance, heart rate variability and cardiovascular disease risk factors.&#8221; Int J Cardiol. 2010;141(2):122-131. doi:10.1016\/j.ijcard.2009.09.543<\/li>\n<li>Task Force of the European Society of Cardiology. &#8220;Heart rate variability: standards of measurement, physiological interpretation and clinical use.&#8221; Circulation. 1996;93(5):1043-1065. doi:10.1161\/01.CIR.93.5.1043<\/li>\n<li>Chalmers JA, Quintana DS, Abbott MJ, Kemp AH. &#8220;Anxiety disorders are associated with reduced heart rate variability: a meta-analysis.&#8221; Front Psychiatry. 2014;5:80. doi:10.3389\/fpsyt.2014.00080<\/li>\n<li>Tracey KJ. &#8220;The inflammatory reflex.&#8221; Nature. 2002;420(6917):853-859. doi:10.1038\/nature01321<\/li>\n<li>Plews DJ, Laursen PB, Stanley J, Kilding AE, Buchheit M. &#8220;Training adaptation and heart rate variability in elite endurance athletes: opening the door to effective monitoring.&#8221; Sports Med. 2013;43(9):773-781. doi:10.1007\/s40279-013-0071-8<\/li>\n<li>Yasuma F, Hayano J. &#8220;Respiratory sinus arrhythmia: why does the heartbeat synchronize with respiratory rhythm?&#8221; Chest. 2004;125(2):683-690. doi:10.1378\/chest.125.2.683<\/li>\n<li>Lehrer PM, Vaschillo E, Vaschillo B. &#8220;Resonant frequency biofeedback training to increase cardiac variability: rationale and manual for training.&#8221; Appl Psychophysiol Biofeedback. 2000;25(3):177-191. doi:10.1023\/A:1009554825745<\/li>\n<li>Vaschillo EG, Vaschillo B, Lehrer PM. &#8220;Characteristics of resonance in heart rate variability stimulated by biofeedback.&#8221; Appl Psychophysiol Biofeedback. 2006;31(2):129-142. doi:10.1007\/s10484-006-9009-3<\/li>\n<li>Goessl VC, Curtiss JE, Hofmann SG. &#8220;The effect of heart rate variability biofeedback training on stress and anxiety: a meta-analysis.&#8221; Psychol Med. 2017;47(15):2578-2586. doi:10.1017\/S0033291717001003<\/li>\n<li>Tan G, Dao TK, Farmer L, Sutherland RJ, Gevirtz R. &#8220;Heart rate variability (HRV) and posttraumatic stress disorder (PTSD): a pilot study.&#8221; Appl Psychophysiol Biofeedback. 2011;36(1):27-35. doi:10.1007\/s10484-010-9141-y<\/li>\n<li>Lin G, Xiang Q, Fu X, et al. &#8220;Heart rate variability biofeedback decreases blood pressure in prehypertensive subjects by improving autonomic function and baroreflex.&#8221; J Altern Complement Med. 2012;18(2):143-152. doi:10.1089\/acm.2010.0607<\/li>\n<li>Lehrer PM, Vaschillo E, Vaschillo B, et al. &#8220;Biofeedback treatment for asthma.&#8221; Chest. 2004;126(2):352-361. doi:10.1378\/chest.126.2.352<\/li>\n<li>Kiviniemi AM, Hautala AJ, Kinnunen H, Tulppo MP. &#8220;Endurance training guided individually by daily heart rate variability measurements.&#8221; Eur J Appl Physiol. 2007;101(6):743-751. doi:10.1007\/s00421-007-0552-2<\/li>\n<li>Caldwell YT, Steffen PR. &#8220;Adding HRV biofeedback to psychotherapy increases heart rate variability and improves the treatment of major depressive disorder.&#8221; Int J Psychophysiol. 2018;131:96-101. doi:10.1016\/j.ijpsycho.2018.01.001<\/li>\n<li>Georgiou K, Larentzakis AV, Khamis NN, Alhassan GI, Mohammad YA, Zouros AD. &#8220;Can wearable devices accurately measure heart rate variability? A systematic review.&#8221; Folia Med (Plovdiv). 2018;60(1):7-20. doi:10.2478\/folmed-2018-0012<\/li>\n<li>Gilgen-Ammann R, Schweizer T, Wyss T. &#8220;RR interval signal quality of a heart rate monitor and an ECG Holter at rest and during exercise.&#8221; Eur J Appl Physiol. 2019;119(7):1525-1532. doi:10.1007\/s00421-019-04142-5<\/li>\n<li>Berryhill S, Morton CJ, Dean A, et al. &#8220;Effect of wearables on sleep in healthy individuals: a randomized crossover trial and validation study.&#8221; J Clin Sleep Med. 2020;16(5):775-783. doi:10.5664\/jcsm.8356<\/li>\n<li>Shaffer F, McCraty R, Zerr CL. &#8220;A healthy heart is not a metronome: an integrative review of the heart&#8217;s anatomy and heart rate variability.&#8221; Front Psychol. 2014;5:1040. doi:10.3389\/fpsyg.2014.01040<\/li>\n<li>McCraty R, Zayas MA. &#8220;Cardiac coherence, self-regulation, autonomic stability, and psychosocial well-being.&#8221; Front Psychol. 2014;5:1090. doi:10.3389\/fpsyg.2014.01090<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>&#8220;HRV training uses biofeedback to increase heart rate variability, a key marker of autonomic nervous system health. Research supports its effectiveness for anxiety, PTSD, hypertension, and athletic recovery, and modern wearables make home training more accessible than ever.&#8221;<\/p>\n","protected":false},"author":1,"featured_media":6399,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","_regenerated_references":"","footnotes":""},"categories":[1214],"tags":[1228,1226,1223,1224,1222,1227,1225],"class_list":["post-5887","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-biofeedback-therapy","tag-autonomic-nervous-system","tag-coherence-training","tag-heart-rate-variability","tag-hrv-biofeedback","tag-hrv-training","tag-hrv-wearables","tag-resonance-frequency-breathing"],"_links":{"self":[{"href":"https:\/\/regenerated.com\/blog\/wp-json\/wp\/v2\/posts\/5887","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/regenerated.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/regenerated.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/regenerated.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/regenerated.com\/blog\/wp-json\/wp\/v2\/comments?post=5887"}],"version-history":[{"count":1,"href":"https:\/\/regenerated.com\/blog\/wp-json\/wp\/v2\/posts\/5887\/revisions"}],"predecessor-version":[{"id":6400,"href":"https:\/\/regenerated.com\/blog\/wp-json\/wp\/v2\/posts\/5887\/revisions\/6400"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/regenerated.com\/blog\/wp-json\/wp\/v2\/media\/6399"}],"wp:attachment":[{"href":"https:\/\/regenerated.com\/blog\/wp-json\/wp\/v2\/media?parent=5887"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/regenerated.com\/blog\/wp-json\/wp\/v2\/categories?post=5887"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/regenerated.com\/blog\/wp-json\/wp\/v2\/tags?post=5887"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}