Life, Liberty, and the Pursuit

of better yoga with props

by Anthony Carroccio
(July/August 1998, Healing Retreats & Spas)

The fiery Indian genius of the yoga posture is considered the father of ‘props.’
I have been practicing yoga for thirty years, and like every good student of yoga, I want to continue to learn and improve. Having really good yoga instruction is definitely a plus—and so is taking advantage of yoga-gear called ‘props.’ Props can be anything from found objects to state-of-the-art yoga equipment. Thirty years ago (1958), B.K.S. Iyengar, the internationally renowned yoga master, referred to his then-little-know props as ‘helpers,’ ‘supporters,’ and ‘weight bearers.’ Later he would call them “guides for self learning.” Now, many years later, props are well known and used in every continent.

Iyengar, author of Light on Yoga, Light on Prāāyāma, and The Tree of Life, developed and introduced a method of teaching that is precise and vigorous. In a seventieth birthday tribute (1988), Iyengar’s students offered a fond and descriptive thank you to their teacher: “For you to have the merry mischief of a schoolboy, the enthusiasm and virility of youth, and the mature judgment of old age… [you are] the salt of the earth… If salt is present, can pepper be far behind? You always keep your pupils on their toes, lest you raise your expressive eyebrows and unleash your peppery temper against them and their lack of total attention and inefficient participation.

This fiery Indian genius of the yoga posture is considered the father of props. Most every use or manifestation of yoga gear has descended through the sphere of his influence. He does mention his guru using rings and rope, but Iyengar alone is responsible for introducing the use of chairs, bricks, slanting planks, bolsters, boxes, belts, walls, and more.

Using the Limbs of My Body
When he began teaching in India in 1938, Iyengar noticed that his pupils had difficulty doing the postures, “I realized that raw students or patients [referred by medical professionals] could not derive maximum advantage. In the beginning, I used to attend each individual using the limbs of my body to support, to teach the pupils to get the effect of an āsana.” Iyengar relates how in the beginning , “I used to pick up sticks and bricks lying in the roads and use them to make progress in my mastery of āsana [yoga postures]. Though crude, they were helping me get a grip on the āsana.” He understood early in his career the significance of his ‘helpers.’

Necessity is the ‘father’ of invention. In a 1988 interview, Iyengar recalled an experience with his very first pupil [who required propping]: “In 1938, the ex-principal of Fergusson College, Professor Rajawade, was 85 years old. He was suffering from dysentery, and was not even able to walk. At the insistence of Dr. V.B. Gokhale, I began teaching him.

He became my guru for inventing methods for teaching invalids. My first innovation came on account of this principal, Rajawade. Just as one lies down to do Śavāsana [corpse pose], I made him do Supta trikoṇāsana [triangle pose in a supine position]. First, I separated his legs. Second, I moved the trunk to one side, and then, stretched his hands sideways, as one does in standing trikoṇāsana… This original thinking to find new ways continues even now, to help both healthy and unhealthy people.

Here, were it not for using the floor as a prop, the benefits of yoga would have been beyond the grasp of one in dire need. Yet, for all his insight and diligence in using props to teach students more effectively, he received the unflattering nickname of “The Furniture Yogi” from the fussy (though perhaps less precise) yoga establishment. Iyengar’s intense personality combined with such criticism probably helped speed the presence of props into the world of yoga. No doubt the challenge likely made him more persistent.

On this point, Iyengar recounts, “Some of the schools do not recommend this kind of assistance. The teachers stand away from pupils and guide theoretically. But I use [props] to assist the [students] physically, subjectively, directly.” In only a few decades (a remarkably short period of time, given the 4,000-year history of yoga*), Iyengar’s innovative approach has profoundly influenced the way haṭha yoga is taught, practiced, and understood.

Today it is virtually impossible to see yoga postures being taught without the presence of at least one yoga prop—the ‘sticky mat.’ Iyengar’s profound insight into the fundamentals of yoga postures dictated the need for a firm, nonslip surface on which to develop stable, anatomically correct form. The sticky mat is now considered an essential prop**.

Taking It to the Next Level
For years I practiced without props because that is all I knew. Although yoga was an important part of my life, my progress was slow, and I was often frustrated by the lack of improvement. Even after twenty years, my yoga shtick remained pretty much the same. This all changed when I took a six-week class in 1988. It was a great class because there were only ten students—more intimate than most. Occasionally, we would meet outside class to practice together. A fellow student invited me to her house. One bedroom was her yoga room. I was amazed: I never imagined that such yoga stuff existed. She had bolsters, benches, a pelvic swing, sandbags, the works. She showed me ways to modify the postures to focus on strength, extension, and alignment***. I realized that it was possible to improve aspects of a posture without creating other bad habits at the same time.

New yoga students today may start out with a sticky mat, a six-foot belt, and a pair of foam or wooden blocks. When they get more serious, they find a wealth of Iyengar inspired gear available to further their yoga practice, everything from folded blankets, shoulderstand lifts, and back-bending benches, to new and exciting props that take Iyengar’s ‘helpers’ to the next level in their evolution.

A Rich and Tangible Process
Recently, I asked Frederic Ferri, a yoga teacher and the developer of the YogaPro system of props, for his western perspective. “Iyengar’s contribution to teaching and learning yoga postures accomplished several important things all at once,” says Ferri. “It gave students a direct way to connect with each posture as a rich and tangible process not just a routine or fixed goal.” Ferri also believes that Iyengar clearly demonstrated the effectiveness of starting at the beginning and working with the anatomical principles that comprise all yoga postures. This helped to take emphasis off of trying to mimic other people’s model postures.

Iyengar himself recounts his early days teaching yoga in India. “I compared a lot of āsana in books. The śīrṣāsana [headstand] of one person was different from that of another. Each āsana was illustrated differently. I thought that the practitioners must be presenting them according to their whims and fancies. Doubts and confusion led me to experiment with all their presentations to find out, by trial and error, which were the wrong, which were the right ways.

Iyengar’s props gave every yoga teacher and student an immediate means of realizing and working with the precision of their own bodies. Starting with an objective and logical approach to the postures makes learning yogāsana more accessible, meaningful, and manageable. Says Ferri, “Iyengar brought yoga from a distant and mystical India and placed its vast potential squarely on our doorstep.

Learning to Swim While Looking Toward the Shore
Learning yogāsana in the absence of props could be compared to learning to swim while looking toward the shore, watching someone demonstrate their best stroke, versus having a teacher or a float in the water with you, supporting you and helping you precisely when and where you need it. Ferri explains, “All yoga postures are made up of the same basic components. Bodies have the same parts and the same agency and manner of movement. We interact precisely with the laws of gravity, physics, and biomechanics. Learning position, balance, and movement is so much easier if these natural laws are available to assist us rather than control us.” And props, in the water or on dry land, helps us do just that.

A current prejudice about props from the purists’ point of view is that you need nothing external to do yogāsana and pāyāma. Perhaps they suspect the external props would somehow interfere with the inward journey. However, a change in consciousness is not dependent on the absence of external stimuli. I find my awareness is enhanced by using props. External assistance can increase the quality of internal awareness and magnify consciousness.

Use of Props and Cheating
For others, a question still lingers—is using props cheating? In fact, the opposite is more often the case. One of the prominent features of props is that they disallow cheating. The body will cheat all by itself, without our having any awareness of it. It prefers its old ways. But props focus attention on form, which in turn helps us discover and use parts of our bodies that haven’t been participating.

The physical precision with which yogāsana are practiced produces many of the nonphysical benefits that arise: calm, focus, tolerance, discipline, wisdom, and spiritual strength. Props provide the form and feedback that help bring about these results. Yogāsana and pāyāma, like most things, are both challenging and more rewarding when done correctly.

While all roads ultimately lead to Rome, the paths do vary. Some are smooth, some are rocky—some take the longer way, others are more direct. If learning haṭha yoga is where you’re heading, props are an excellent way to go.

* Iyengar and the Invention of Yoga

** The History of Yoga Mats

*** Iyengar Method

The Vagus Nerve: Everything you need to know

It’s the body’s information superhighway that tells your organs how to rest.
By Haley Bennett

What is the vagus nerve?
Your brain is connected to your body through a set of 12 crucial nerve networks that descend through your spine and branch out into your body. Of these, the vagus nerve is probably one of the most important. Its tendrils influence digestion, your heart, your reflexes and your breathing.

So you can see why scientists are so interested in what the vagus nerve does—especially when you consider how all of the above affects your mood. You could call it a superhighway between our brains and bodies.

Vagus nerve function
In contrast to the rapid ‘fight, flight, or freeze’ responses that are under the control of the sympathetic arm of the nervous system, the vagus nerve is responsible for many of the slower,’rest, digest, and repair’ responses that we collectively call the parasympathetic arm. The nerve itself is actually two thick bundles of individual neurons [nerve cells] that originate in the brain and pass out to the rest of the body through left-sided and right-sided openings at the bottom of the skull.

Most of the individual neurons that make up the vagus nerve are sensory ones—about 100,000 on each side of the body in humans—which pass messages from the organs to the brain, and are activated by sensory input from the environment. The remainder are motor neurons, which send messages in the opposite direction, from the brain to organs, and directly control all of our muscle movements.

Why is the vagus nerve so important?
The vagus nerve is a sort of polymath of the parasympathetic nervous system, getting involved in everything from breathing, heart rate, swallowing, sneezing, digestion, appetite, immune responses and even orgasm.

The vagus nerve’s wide-ranging skill set comes from having a diverse array of neuron cell types at its disposal. These allow the nerves to pick up different types of sensory signals from different organs. Some, for instance, sense chemical signals like oxygen levels in the blood or the secretions of bacteria in the intestine, while others sense mechanical signals like stretching of the blood vessels and gut.

Therefore, the neurons in the vagus nerve mostly give the brain information about what is going on in the rest of the body. The brain interprets this information and acts upon it to help maintain the internal status quo. But there are also important functions associated with the less numerous neurons that send signals the opposite way, including in communications between the brain and gut, and in select muscles in the mouth and throat that are responsible for speech and the gag reflex.

The long and winding nerve
The word, ‘vagus’ means ‘wandering’ in Latin, and the vagus nerve truly is. The nerve bundles reach as far as the base of the spine and colon, branching off to the vital organs, including the heart, lungs, liver and gut, along the way.

As the longest cranial nerve in the body, it’s the main component of the parasympathetic nervous system, which controls automatic bodily functions such as digestion, when the body is at rest. Historically, the vagus nerve was known as the pneumogastric nerve, because it supplies both the lungs and stomach with nerves.

The functions of the vagus nerve are so numerous and varied that it’s very likely there are roles that we have yet to uncover. We do know, however, how we can tap into it. Doctors sometimes prescribe ‘valsalva manoeuvres‘ to activate the vagus nerve and slow a fast-beating heart or calm heart palpitations. These might involve activities like coughing, straining like you’re on the toilet or, perhaps most bizarrely, doing a handstand.

The vagus nerve and the heart
One key metric that is often used is heart rate variability—the variation in the gaps between consecutive heartbeats. A healthy heartbeat is slightly more chaotic in its rhythm, so low variation is said to be associated with a jacked-up sympathetic system, where the body is in constant fight or flight mode, with the vagus nerve and parasympathetic response struggling to keep up.

Despite its widespread use, however, there are still some questions about how useful heart rate variability can be as an indicator of balance between the parasympathetic and sympathetic systems. Although heart rate monitors can give us this information, we shouldn’t obsess about the numbers.

What happens if the vagus nerve is damaged?
In the past, stomach ulcers were often treated by cutting the fibres of the vagus nerve below the rib cage. The thinking was that the vagus nerve plays a central role in producing the stomach acid that causes the sores. With modern drugs, the need for this type of surgery has decreased, but it demonstrates what can happen when a nerve with so many branches is compromised.

Indeed, ‘vagatomies’ cut off the vagal nerve supply to the stomach, pancreas, small intestine and part of the colon, meaning that without further surgery to the gut, the patient may be unable to pass solid waste. People with gastroparesis suffer from a similar problem, but in this case, the symptoms are usually due to vagus nerve damage caused by diabetes, drugs, or infection.

However, when the vagus nerve is damaged higher up, the effects can be completely different. The chickenpox virus, for example, attacks the nervous system and though rare, it has been known for the virus to cause vagus nerve lesions that result in a patient losing their ability to swallow—they may also get a headache and an inflamed ear. Early data collected by Spanish researchers also suggests that some of the symptoms of long COVID may be related to vagus nerve damage, including breathing, voice and bowel issues.

Do I need to get myself a vagus nerve stimulator?
The evidence we have so far suggests devices for vagus nerve stimulation are safe. However, researchers are still concerned about the increase in at-home use of nerve stimulators, which may come with risks that we’re not yet aware of.

Those who prefer mindfulness to being hooked up to machines are turning to activities such as yoga, meditation, hypnotherapy and deep breathing, all of which are thought to boost the functioning of the parasympathetic nervous system and vagus nerve. There is also evidence to suggest that cold water swimming or bathing, or even just splashing your face with cold water, can stimulate the vagus nerve and activate the parasympathetic system.

Of course, buying a cheap device to attach to your ear, or signing up to take part in yoga retreat, may seem like an appealing fix when you’re not feeling quite right, but it’s always best to get serious health complaints checked by a doctor.

What is vagus nerve stimulation?
The concept of vagus nerve stimulation goes back as far as the late 19th Century, when the neurologist James Leonard Corning developed an electrical stimulator to treat epileptic patients. Although it was discarded as a treatment back then, over 100,000 people have now had vagus nerve stimulation—by implant in the chest or, less often, brain—to treat epilepsy when the drugs they’ve tried haven’t worked.

Some people are able to get as much as a 75% reduction in their seizures with an implant, with multiple studies showing the benefits increase the longer the implant has been installed. An implantable device made by the US medical technology company Cyberonics is also approved for severe depression and headaches.

Nerve stimulation doesn’t have to mean surgery, though. It’s possible to access the vagus nerve through its branches in the ear and neck, for example, using devices similar to the inexpensive TENS machines more commonly used for quelling labour pain. Ear clips are widely sold as TENS attachments, while companies like Nurosym make stylish neuromodulators targeted at people who want to try the approach for anxiety, depression, or fatigue.

Scientific research on vagus nerve stimulation is exploding currently, with trials covering burns, obesity, high blood pressure, rheumatoid arthritis, Alzheimer’s, tinnitus, …the list goes on. Due to the close connection between the vagus nerve and gut function, it’s also touted as a potential treatment for common bowel disorders like IBS. Although, as with other conditions, the process of gathering evidence from trials to support its use will take time.

Five facts you need to know about the vagus nerve

  • It’s the longest cranial nerve, running from the brain to the large intestine, and sends signals in both directions via neurotransmitters and gut hormones.
  • The fibres of the vagus nerve contain 200,000 sensory nerve cells. Our ears are the only place where sensory vagus nerve fibres reach the surface of our bodies.
  • A vagus nerve ‘bypass’ that carries impulses directly between the uterus and brain is thought to allow women with spinal cord injuries to have orgasms.
  • Vagus nerve stimulation affects the gamma-aminobutyric acid neurotransmitter associated with ADHD, leading scientists to propose it as a potential treatment.
  • The scientific name for fainting is vasovagal syncope, which occurs when the vagus nerve is overstimulated, causing a sudden drop in heart rate, and blood pressure.