1. Cyclic Sighing (Physiological Sigh or Double Inhale)


What is Cyclic Sighing?

Cyclic Sighing, often referred to as the Physiological Sigh or Double Inhale, is a breathing technique that combines two sequential inhales followed by a long exhale. This pattern is particularly effective in alleviating stress and improving mood.

The Science Behind It

Research led by David Spiegel and Andrew Huberman at Stanford Medicine demonstrates the effectiveness of Cyclic Sighing in calming anxiety. The technique leverages the body's natural respiratory mechanics to activate the parasympathetic nervous system, promoting a state of relaxation. This activation results in lowered heart rate and respiration rate, thereby reducing stress. Moreover, the study found that the benefits of cyclic sighing increased over time, suggesting that individuals benefited more from the exercise the more days they did it.

How to Practice

  • Begin with a normal inhale through your nose.
  • Immediately follow with a deeper inhale before you exhale.
  • Exhale slowly and passively through your mouth.
  • Repeat this cycle for about five minutes.
  • Ensure you are seated or lying down in a safe environment to prevent any risk if dizziness occurs.


  • Quick reduction in anxiety levels.
  • Enhanced mood and emotional well-being.
  • Easy to practice anywhere without special equipment.

2. Resonance Breathing


Understanding Resonance Breathing

Resonance Breathing, also known as coherence breathing, is a technique that involves slow, relaxed diaphragmatic breathing at a specific frequency, typically around 5-7 breaths per minute. This rate synchronizes your heart and your breath rate, and maximizes heart rate variability (HRV).

Scientific Insights

Resonance Breathing is renowned for its ability to increase vagal tone and improve the sensitivity of baroreceptors. It fosters a balance between the sympathetic and parasympathetic nervous systems, enhancing overall physical and mental health. It's particularly beneficial for older adults in restoring vagal outflow and reducing anxiety.

Practicing Resonance Breathing

  • Breathe in a slow, controlled manner, aiming for about 5-7 breaths per minute.
  • Focus on deep, diaphragmatic breaths.
  • Engage in this practice for a few minutes each day, ideally in a quiet and comfortable setting.
  • For best results, consider a live biofeedback wearable, like Oxa breathing coach.


  • Reduces anxiety and stress.
  • Enhances parasympathetic activity for relaxation.
  • Improves heart rate variability, indicating better stress resilience.

3. Box Breathing


What is Box Breathing?

Box Breathing is a method used by Navy SEALs for its calming effects. The technique involves four key steps: inhaling, holding, exhaling, and pausing, each for an equal duration.

The Science Behind Box Breathing

This technique is beneficial both physiologically and psychologically. It helps regulate breathing, enhances oxygenation, and can assist in lowering blood pressure and heart rate. Psychologically, it aids in emotional control and stress management.

How to Practice

  • Inhale slowly to a count of four.
  • Hold your breath for four counts.
  • Exhale smoothly for four counts.
  • Pause for four counts before inhaling again.
  • Repeat for several minutes, ideally in a calm environment.


  • Immediate stress relief and calming effect.
  • Improved concentration and mental clarity.
  • Can be practiced in any setting without any special tools.

While the techniques outlined above are relatively straightforward, incorporating them into your daily routine can significantly enhance their effectiveness.

You Might be Interested: Anxiety Solutions: 4 Breathing Exercises for Anxiety

Insights and Tips to Deepen Your Practice

1. Creating a Routine

Consistency is key. Setting aside a specific time each day for these exercises can help turn them into a habit. Whether it's in the morning to start your day, during a lunch break to reset, or in the evening to unwind, find a time that works best for you.

2. Combining Techniques

Feel free to combine these techniques as needed. For instance, you might start with Cyclic Sighing to quickly calm down, followed by Resonance Breathing for deeper relaxation, and finish with Box Breathing to sharpen focus.

3. Mindfulness and Visualization

While practicing these techniques, incorporate visualization. For example, imagine stress leaving your body with each exhale during Box Breathing, or visualize a calm, peaceful scene while engaging in Resonance Breathing.

4. Adapting to Your Needs

Listen to your body and adapt these exercises as needed. If a particular technique doesn't feel right or causes discomfort, adjust it to suit your comfort level or try a different one.

5. Tracking Progress

Consider keeping a journal or using an Oxa app to track your progress. Noting down how you feel before and after each session can be motivating and help you understand which technique works best for you.

Also Read: Embrace Phelps' Breathwork for Mental Resilience: A Guide to Cultivati

FAQs About Breathing Exercises for Stress Relief

Q: How quickly can I expect to see results from these breathing exercises?

A: Immediate effects, such as a sense of calm and reduced anxiety, can be felt right after practicing these exercises. Consistent practice will lead to more enduring and profound benefits.

Q: Can these exercises help with sleep disturbances?

A: Yes, particularly Box Breathing and Cyclic Sighing can help calm the mind before sleep, aiding in better sleep quality.

Q: Are there any conditions under which I should avoid these exercises?

A: If you have any respiratory conditions, cardiac issues, or other health concerns, it's best to consult with a healthcare professional before starting these exercises.

Q: Are there any risks involved in these breathing exercises?

A: These exercises are generally safe. However, if you have any underlying health conditions, especially respiratory issues, consult with a healthcare professional before starting.

Q: Can breathing exercises replace medication for anxiety or stress?

A: While breathing exercises are effective for stress relief, they should not replace prescribed medication without consulting a healthcare provider. They are a complementary tool for managing stress and anxiety.

Stéphane Janssoone
May 28, 2024

A former elite triathlete, now a competitive freediver, MBTI I & 2, Certified Wim Hof, and Oxygen Advantage Instructor, epitomizes mastery in breathwork and personal development. As the founder of the Breathing Academy and Oxa Life’s Breathing Advisor, his transformative breath-based techniques profoundly impact individuals’ health and performance through an innovative and holistic approach.

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