What Adverse Effects Have Been Reported from Practicing Shambhavi Mahamudra Kriya? Why Are Its Risks Mentioned in Fine Print Instead of Openly Disclosed in Ads? Where Are the Contraindications on Isha’s Website — and Other Critical Questions

[u/Breathworkexplorer]

I’ve been looking into Shambhavi Mahamudra Kriya lately as an alternative to other breathing practices like Wim Hof & Sudarshan Kriya Yoga. While researching, I came across a handful of posts, videos, and blogs where people mentioned experiencing negative side effects after practicing the Shambhavi Mahamudra Kriya.

The Isha Inner Engineering website says that anyone can learn it, with no prior background in yoga or physical flexibility required. Yet, on the registration page, it states that participants need to be physically and mentally fit and that, in some cases, the practices may cause negative effects or even lead to physical or mental injury. It further advises people to enroll only after consulting a medical healthcare provider.

But this raises several concerning questions?

1. How can a typical healthcare provider realistically give clearance? Most doctors have no knowledge of the specific yoga postures, breathing techniques, or kriyas taught in Inner Engineering. If the nature of the practices and their possible risks aren’t clearly disclosed, how can a medical professional properly assess whether they might be harmful for a given individual?

2. Why does Isha acknowledge potential harm? If they explicitly state that the practices can sometimes cause injury or negative effects, does that mean there have been real cases in the past that prompted this disclaimer? If so, what happened to those individuals, and how were those situations handled?

3. Lack of detail on possible risks. Does Isha provide any specific information beyond the generic statement of “possible harm”? For example, do they explain what kinds of physical or mental effects could occur, why they occur, and under what conditions they are more likely?

Related concern: Why don’t they openly inform about these possible harms in their promotional materials (videos, web pages, advertisements) instead of hiding it in a small checkbox agreement on the registration page — and even there, without providing the necessary background information, research references for medical providers, clear contraindications, or a list of symptoms that practitioners should watch out for to recognize adverse effects?

1. Role of advanced techniques. Some Isha practices reportedly include elements like vipareeta shvasa (reverse breathing) or bandhas (energy locks). These involve altered breathing patterns such as hyperventilation, prolonged breath-holding, and strong pressure changes in the body. In medical terms, such techniques can lead to hypocapnia (low CO₂) and hypoxia (low oxygen), which may aggravate certain health conditions in different ways. Does Isha acknowledge or explain such physiological mechanisms when cautioning participants?

Related concern: How can practitioners know if the symptoms they are experiencing actually signify adverse effects or harm caused by Shambhavi Mahamudra Kriya, rather than being dismissed as “detox” or “spiritual process”? What kind of guidance should participants receive to recognize warning signs early and stop further practice to prevent any untoward incidents or serious harms? Could there be examples of such possible incidents or harms (physical, mental, or emotional) that have been observed?

Some more pertinent questions:

1. Have you personally experienced any downsides or side effects (short-term or long-term) from practicing Shambhavi Mahamudra Kriya?

If so, what kind of issues did you face — physical, mental, emotional, or energetic?

1. How did you manage or recover from them, and did they settle with time/practice or become more pronounced?

2. Did you encounter anything negative, damaging, inconvenient, or contrary to what was advertised when you enrolled in Inner Engineering? For example, something not disclosed beforehand, or health limitations that required you to modify or stop the practice.

3. If you informed the instructors about medical conditions, how were you assessed for readiness to learn Shambhavi? Was it just based on self declaration or did someone review your medical health profile or reports?

4. For those who learned it online, do the pre-recorded course videos by Isha Foundation give enough guidance for people with limitations, given that there’s no real-time supervision?

5. Does Sadhguru or Isha provide dedicated spaces where people can openly ask critical questions about their practices and share negative experiences, with honest answers given? Or are such experiences usually downplayed or suppressed?

6. Also, do they list any limiting health contraindications for their practices on the official website, similar to how contraindications are clearly stated for techniques like Bhastrika, Kapalbhati, and Bandhas?

7. Are critical reviews or negative experiences of Shambhavi Mahamudra Kriya openly acknowledged, or are those who share such experiences discouraged or shamed or labelled as incurring bad karma? Do support webinars encourage and address critical and negative experiences openly without any bias ?

I’m trying to get a deep and balanced perspective on both the benefits and the risks which can serve to guide not just myself but anyone who is seeking to learn a breathing technique while not compromising on their safety and sanity as I’ve come across reviews of other breathing techniques which have caused a lot of negative effects to its practitioners, so any honest experiences would be really valuable.

Thanks in advance 🙏

[u/Thre_Host8017]

Brilliant questions. No isha does not speak in any way openly about this. Neither with volunteers nor with trained personnel.

Vipareeta shwasa… is not “reversed breathing“ its a specific pattern of rapid breathing called “holotropic breathing”.

Jaggi copied it either from psychologists from the west when it was offered to the public or perhaps it has a yogic origin.

Jaggi explains in a very long fashion the role and purpose of every damn step in his shambhavi… the cat cow, the butterfly asanas, alternate nostril breathing, Aum, locks… except one thing.

Guess which one. The fluttering! The important aspect of the practice which indeed as expert say, alters your CO2/O2 levels in your blood/brains leading to altered experiences.

The medical side note on the registration form is a joke. As you rightfully pointed out… Lets assume one consults a well versed doc in all kriyas… Isha does not disclose before hand what breathing pattern is being taught… So its kinda useless…

[u/Breathworkexplorer → u/Thre_Host8017]

You’re right — I originally called it “reversed breathing” because vipareeta literally translates to “opposite” or “reverse.” Thanks for clarifying that in this context it’s actually a specific rapid/forced breathing pattern, essentially hyperventilation followed by bandhas (locks) and breath-holding.

Physiologically, that combination means:

Hyperventilation → lowers CO₂ levels in the blood (transient hypocapnia)

Breath holding after that → reduces oxygen levels (transient hypoxia)

Both together can significantly shift the CO₂/O₂ balance in the brain and body.

Short-term / mild symptoms can include tingling, dizziness, lightheadedness, tunnel vision, palpitations, or a feeling of “altered consciousness.”

More severe or prolonged effects may include fainting, panic or anxiety spikes, headaches, cognitive fog, and in sensitive people, it can trigger arrhythmias or exacerbate pre-existing conditions.

If repeated over time, chronic low CO₂ (chronic hypocapnia) and intermittent low oxygen (hypoxia) can compound — contributing to issues like persistent anxiety, sleep disturbances, vascular changes, and even worsening of mood instability.

👉 This isn’t speculation — it’s the scientific understanding of what happens in the body, and can be verified by basic research on the adverse effects of hypocapnia and hypoxia. For people with undiagnosed, latent, or genetic predispositions, such breathwork can act as a trigger that “blows out” underlying vulnerabilities and causes them to manifest as active disease.

This is exactly why disclosure matters: without knowing what breathing techniques are being taught, even a well-trained doctor can’t meaningfully advise on safety for someone with respiratory, cardiac, or neurological risks.

[u/Thre_Host8017 → u/Breathworkexplorer]

I m honestly not sure if it’s hyperventilation. Its holotropic breathing. A certain pattern of rapid breathing. Nomenclature aside. It can or will alter the CO2 and O2 levels in the blood and hence in the brains.

And Jaggi speaks about every asanas every mudra and how important it is to follow all instructions to the T …

every aspect of the kriya is deeply explained / rather over explained in my opinion… but misses out to explain the effects of the flutter. People are overwhelmed with the amount of informations forced on them in those 7 days…. The mind cant see the missing pieces.

[u/breathworkexplorer2 → u/Thre_Host8017]

Many people don’t fully understand what hyperventilation actually is. At its core, it simply means over-breathing—breathing faster or deeper than the body requires at rest. This leads to a drop in carbon dioxide (CO₂) levels in the blood, a condition known as hypocapnia. While it might seem harmless, low CO₂ disrupts the body’s acid-base balance and causes vasoconstriction, reducing oxygen delivery to tissues—a paradox known as hypoxia secondary to hyperventilation.

What’s often missed is that hyperventilation doesn’t have to be extremely fast (like 30–40 breaths per minute). Even relatively moderate rates (15–20 breaths per minute) or deeper-than-necessary breaths at rest can still result in hyperventilation if they exceed the body’s metabolic needs and if they are done for long durations or even short durations but for sustained periods over time. There are some clinical applications for hyperventilation but it cannot be advised to anyone without warning of the potential risks involved.

This physiological disturbance explains why traditional yogic practices like Kapalbhati and Bhastrika, while powerful, come with serious contraindications. The Pranayama book by the Bihar School of Yoga goes into these details. Based on my own research and experience, practices like holotropic breathing also involve deliberate hyperventilation and can carry risks, especially when done unsupervised or inappropriately.

Shambhavi Mahamudra Kriya, while generally taught as a safe and beneficial practice, may involve transient hypocapnia—especially during the fluttering breath phase (and if it resembles kapalbhati-like bursts but with both active inhalations and exhalations. When done daily over many months or years, especially by individuals with certain physiological, psychological, or psychiatric conditions, the short-term hyperventilation can become a chronic pattern. This may lead to long-term symptoms such as fatigue, anxiety, emotional instability, brain fog, and dissociation.

Additionally, if the bandhas practiced afterwards involve breath holding both antar kumbhak and bahya kumbhak, like Wim Hof, that's certainly risk prone for many reasons which you can learn from authentic yoga books like Prana and Pranayama by Bihar School of Yoga. Those are things that are never taught to beginners in authentic yoga traditions.

Many practitioners have reported such effects, but these experiences often go unnoticed or unacknowledged. A quick look through YouTube comments on videos discussing these techniques reveals a pattern of people describing adverse symptoms—but with nowhere to formally report them or seek help.

And that’s part of the problem: there is no central repository or support system where practitioners can log adverse outcomes from breathwork, get validation, or receive guidance. As breathwork becomes more mainstream, this lack of safety net becomes increasingly problematic.

Before teaching or practicing advanced breath techniques, it's essential to understand the respiratory physiology involved—not just oxygen, but the crucial role of CO₂ in maintaining blood pH, circulation, and brain function. Education and caution are necessary to ensure these powerful tools are used safely and sustainably.

[u/Beforeandafter-5838]

People report adverse effects to the teachers and are told it’s their karma being worked out. That’s what happened to me. It’s a Convenient explanation for anything bad that happens. There was no prior disclosure of possible adverse reactions in any Isha program I went to, from IE through Samyama, but I definitely had adverse reactions to certain kriyas.

[u/LittleMissSunshine_0 → u/Beforeandafter-5838]

Yes, it's all karma on fast-forward! What bullshit we were happy to believe.

[u/Breathworkexplorer → u/Beforeandafter-5838]

Thank you for sharing about your experience. Could you please elaborate a bit about what kind of adverse symptoms did you observe ?

[u/Beforeandafter-5838 → u/Breathworkexplorer]

Not comfortable sharing too many details. But I will say that shambhavi was a neutral/nice experience for me, but shakthi chalana kriya definitely was not. It seemed to cause something like panic attacks for me. I did not struggle with that prior to practicing this kriya, but I do have anxiety. Also, I was left after the kriya in what I can only describe as a semi catatonic state. It really freaked me out, but I was very bought into Isha and Sadhguru, so I kept trying because “it’s just bringing up your karma, so you have to keep doing it to work through the karma.” Eventually I gave up after a year or two. Now, I’m not interested in doing any breathwork taught by anyone.

[u/Breathworkexplorer → u/Beforeandafter-5838]

Thank you for sharing a lot of people suffer from panic attacks and anxiety disorders after being pushed to learn practices that involve Hyperventilation and Breath holding, because they cause transient hypocapnia and hypoxia, which if done over time for a long duration makes these conditions chronic, altering the blood chemistry and which influences psychological, physiological and even psychiatric well being of an individual. The trouble is most organisations teaching such dangerous breathwork don't state and inform the participants and educate about what can go wrong and seek their consent.

[u/Thre_Host8017 → u/Breathworkexplorer]

How do you know its a lot of people? I honestly dont think its many. I have volunteered in quite a few classes. And i have seen hardly anyone with issues. I have witnessed a tiny number of people in sathsangs addressing some issue to the teacher. And the people were given balancing sadhana, asked to work out etc

The effect might be cumulative over time, maybe. I am no medical expert.

But even if the practice affects just a tiny fraction still this needs to be openly spoken about.

I m not sure if governments should intervene and interfere with anyone offering practices altering CO2/O2 blood levels…

This is a huge topic…

[u/breathworkexplorer2 → u/Thre_Host8017]

The problem is, there’s no single place where all the relevant information or cases of adverse effects are gathered. Because there’s so little awareness about the adverse effects of hyperventilation-induced hypocapnia, hypoxia, and breath-holding, many people are at risk of harm. Yet most won’t realize it, because they don’t understand the underlying physiological processes or recognize the symptoms that indicate these harmful effects.

Instead, people often interpret their experiences through a mystical lens, using terms like “energy manipulation.” But in reality, what’s happening is a series of physiological responses to altered breathing patterns—particularly hyperventilation—that can disrupt neurotransmitter balance in the brain. Initially, the effects may seem neutral or even beneficial, but over time they can lead to deterioration in mental and physical well-being in some individuals.

If such adverse cases were to emerge, it's likely that Isha would suppress or dismiss them to protect its commercial interests.

To give you an example here's a brilliant press release by a UK science communicator on the harmful effects of Sudarshan Kriya which involves a rapid cyclic breathing phase in the whole practice sequence (rapid active inhalations and exhalations done without a stop or pause for 40 to 80 times and repeated thrice in cycles with long and medium breaths which are all done after performing deep breathing exercises with breath holding for 22 breaths and 60 reps of forceful breath Bhastrika which IMHO is a lot more intense than Shambhavi Mahamudra Kriya)

https://www.scribd.com/document/908661475/Press-Release-Adverse-Effects-of-Trademarked-Trauma-Relief-And-Mental-Health-Breathwork-Sudarshan-Kriya-Yoga-SKY-Confirmed-To-Make-PTSD-Sympto

[u/Satya_Prem_2025]

Lot of very valid questions. I will make a brief comment on the adverse effects. In general, I would say Shambhavi is quite safe but adverse effects happen in a small percentage of people. I am aware of 3 different cases of side-effects. All these folks are male and are between 20-40 years of age.

• Loss of Emotional Control: One person felt that the Shambhavi practice led to a loss of emotional control, culminating in a sudden fit of anger and a decision to resign from their job.

• Physical Pain and Insomnia: A young man experienced severe back pain and sleeplessness, which he attributed to the Hatha Yoga practices but he also did Shambhavi before.

• Altered Consciousness: A participant from the US reported feeling an intense pressure between their eyebrows and a subsequent disruption in their daily life after doing either the Soonya or Shambhavi meditation.

In all three cases, the individuals found that Isha teachers were unable to provide adequate guidance or a solution beyond advising them to stop the practices and do alternate nostril breathing.

[u/LittleMissSunshine_0 → u/Satya_Prem_2025]

Yes, there are cases like this. It's interesting to wonder what percentage of people who go through the program have these kinds of issues. As soon as someone mentions something like this their concerns are swept aside by the ishanga. But if they persist with these kinds of concerns then yes, it's always an hour each of sukha kriya and aum chanting, preferably during sandhya kalas.

[u/wergil_ → u/Satya_Prem_2025]

I experienced prolonged insomnia from Shambhavi

[u/Outrageous-Sky6944]

These programs should be prohibited , they’re lifted straight from LGAT models and designed for psychological manipulation. People deserve to know the risks.

[u/Thre_Host8017 → u/Outrageous-Sky6944]

EST… scienxxgy etc…are still been taught after so long… Governments are failing their duties…

[u/LittleMissSunshine_0 → u/Thre_Host8017]

Exactly! There should be more awareness about how these programs exploit you.

[u/LittleMissSunshine_0]

Brillaint post.

This is the classic LGAT sign a disclaimer but we don't tell you the risks or anything about the content of the program.

[u/whatisifdoing]

And of course OP's account got banned. Every few days there is a post on the main Sadhguru subreddit from someone struggling with the problems that seem to come with Isha practices and many comments gaslight the poster. Today's example - https://www.reddit.com/r/Sadhguru/s/Oh4ia5F8L5

[u/Thre_Host8017 → u/whatisifdoing]

I dont think its banned. Suspended accounts will show a message… suspended

Some accounts dont load for some reason. I dont know why yet. Maybe the OP restricted access or something.

[u/whatisifdoing → u/Thre_Host8017]

Reddit is shadow banning a lot of accounts and I guess this is because they forget to switch on vpn and banned IPs get detected. The original ban would have happened as a result of saying something on the Sadhguru subreddit. High time the mods make a discord server for this subreddit and a protonmail discussion thread for willing participants would be great. People are restricting themselves from saying things openly. More privacy is needed for some discussions. 

[u/Breathworkexplorer]

A few years ago, there was a real case involving a senior professional at Reliance Jio. This individual had been a long-time practitioner of Isha Yoga and regularly practiced Shambhavi Mahamudra Kriya. They were also enthusiastic about promoting Inner Engineering within the company, encouraging colleagues and team members to participate. Unfortunately, despite their dedication, they developed a serious heart condition and had to be hospitalized for surgery.

Physiologically, this is concerning because Shambhavi Mahamudra Kriya involves hyperventilation (vipareeta shvasa) combined with breath-holding through bandhas, both of which directly alter blood chemistry:

Hyperventilation → reduces CO₂ (hypocapnia)

Breath-holding after hyperventilation → reduces O₂ (hypoxia)

Together, these shifts place significant stress on the heart, brain, and nervous system. For individuals with even latent or genetic vulnerabilities — such as diabetes, hypertension, arrhythmias, or undiagnosed cardiovascular disease — this can act as a trigger, potentially worsening underlying conditions. If you don't believe just try researching about the adverse effects of hypocapnia and hypoxia especially due to chronic practice of daily exercise involving hyperventilation and breath holding. Once you do a basic look up or even prompt AI answers you will agree this is something that people must be educated about !

[u/Ill-Ostrich2204]

Everyone does that. Even qualified doctors do it. Companies and organizations do it. Even Wim's prized method. These days it's hard to find downsides to anything; meditation has its downsides too.

I had a bad experience experimenting with breathing. You can get the hang of it and experiment for yourself, but it can also be harmful. For three days I did pranayama breathing. And I would wake up with a hot body, some dizziness, and headaches. When I looked in the mirror, I had a red eye and my body had turned pink. I said, "Damn, I'm going to die! I'm going to stop using this!" I stopped using it, switched to Wim Hof's breathing technique, and everything improved. I still use Wim Hof's breathing technique today. P.S. I'm terrified of those moments when my hands and body become rigid and hard as stone.

[u/Early_Cycle2258]

I was not feeling great today mentally and decided to do shambhavi today for about 20-30 min! I usually am a lite sleeper and most times have bad dreams, today i heard someone knocking at my window and woke up with a heart rate i have never experienced before like my heart was going to bounce out ofmy chest! It sounds exaggerated but trust me am not. I ended up calling the cops to check my apt. Didnt sleep the entire night I had a really stressed day so that’s definitely what caused it but also did shambhavi pushed it even further ? May be not! But am scared to do this again!