While modern media and advertising may have us think that yoga is all about physical poses, the entirety of yoga includes a wide range of contemplative and self-disciplinary practices, such as meditation, chanting, mantra, prayer, breath work, ritual, and even selfless action. The word “yoga” comes from the root word “yuj,” which means “to yoke” or “to bind.” The word itself has numerous meanings, with the underlying theme being connection. Yoga asana is the physical practice and postures.
1. Yoga improves flexibility
In 2016, two of yoga’s leading organizations, Yoga Journal and Yoga Alliance, conducted a worldwide survey looking at a variety of statistics about yoga in an attempt to quantify its value amid ever-increasing popularity. The most cited reason people selected for doing yoga was to “increase flexibility”. Flexibility is an important component of physical health. Yoga offers many styles to choose from, varying in intensity from high to moderate to mild. Even the lowest intensity styles have been found to increase flexibility
2. Yoga helps with stress relief
The American Psychological Association recently shared that 84% of American adults are feeling the impact of prolonged stress. So, it makes sense that the second most cited reason people selected why they do yoga was to relieve stress. Thankfully, the science supports that yoga, and especially asana, is excellent at reducing stress
3. Yoga improves mental health
Major depressive disorder (MDD) is thought to be one of the most common mental health disorders in the world. A 2017 meta-analysis of 23 interventions looking at the effects of yoga-based treatments on depressive symptoms overwhelmingly concluded that yoga can now be considered an effective alternative treatment for MDD. Both movement-based yoga therapies and breathing-based practices have been shown to significantly improve depressive symptoms.
4. Yoga may reduce inflammation
Often, the precursor to illness is chronic inflammation. Heart disease, diabetes, arthritis, Crohn’s disease, and many other conditions are linked to prolonged inflammation (10Trusted Source). One review examined 15 research studies and found a common result: yoga — of various styles, intensities, and durations — reduced the biochemical markers of inflammation across several chronic conditions.
5. Yoga will likely increase your strength
While most people associate yoga with stretching and flexibility, some types of yoga classes can also be considered strength-building. It just depends on the class level, approach, and teacher. This makes yoga asana a multimodal form of exercise. Yoga’s effectiveness at building strength has been studied in several specific contexts — for instance, as it pertains to people with breast cancer, older adults, and children. Another study conducted on air force personnel found yoga to be an effective strength-building practice across many age groups of healthy participants.
6. Yoga reduces anxiety
The Anxiety and Depression Association of America recently stated that anxiety disorders may be the most common mental health disorders in the United States. There are a number of different anxiety disorders, such as generalized anxiety disorder, social anxiety, and specific phobias. Even chronic stress can sometimes be categorized as an anxiety disorder. Numerous studies suggest that yoga asana may be effective as an alternative treatment for anxiety disorders, though several of the researchers request additional replicated studies before conclusively stating as much. Yoga Nidra, which is a body scan and guided meditation, has been shown to conclusively reduce symptoms of anxiety.
7. Yoga may improve quality of life
The World Health Organization defines quality of life (QOL) as “an individual’s perception of their position in life in the context of the culture and value systems in which they live and in relation to their goals, expectations, standards and concerns”. Some factors that affect QOL are relationships, creativity, learning opportunities, health, and material comforts. For decades, researchers have viewed QOL as an important predictor of people’s longevity and patients’ likelihood of improvement when treated for a chronic illness or injury. A 2019 meta-analysis shows promising potential for yoga to improve quality of life in people with chronic pain.
8. Yoga may boost immunity
Chronic stress negatively affects your immune system. When your immunity is compromised, you’re more susceptible to illness. However, as discussed earlier, yoga is considered a scientifically backed alternative treatment for stress. The research is still evolving, but some studies have found a distinct link between practicing yoga (especially consistently over the long term) and better immune system functioning. This is due in part to yoga’s ability to fight inflammation and in part to the enhancement of cell-mediated immunity.
9. Yoga can improve balance
Balance is not just important when you’re trying to stand on one leg in Tree Pose in yoga class. It’s also essential for simple everyday movements such as picking something up off the floor, reaching up to a shelf, and descending stairs. Yoga has been shown to improve balance and overall performance in athletes. Likewise, a review of the research conducted on healthy populations suggests balance may improve for most people after consistently practicing yoga. Still, falling can have serious effects on certain populations. According to the Agency for Healthcare Research and Quality, falls are incredibly common among older adults in nursing facilities, and even the simplest ones can lead to an increased risk of death. Newer research suggests yoga can improve balance in older populations. However, more studies with large sample sizes are needed before a general conclusion can be drawn. Yoga asana can also be helpful at improving balance in people with brain injuries. Adaptive yoga or chair yoga can be especially helpful for older adults or people with injuries who are less mobile or for whom balance is a concern.
10. Yoga may improve cardiovascular functioning
Pranayama, often referred to as “yogic breathing,” is an important and beneficial aspect of yoga. The Journal of Ayurveda and Integrative Medicine published a review of 1,400 studies looking at the overall effects of pranayama. One key takeaway was that yogic breathing can improve the functioning of several systems in the body. Specifically, the research summarized in the review found that the cardiovascular system benefited mightily from controlling the pace of breathing, as evidenced by favorable changes in heart rate, stroke capacity, arterial pressure, and contractility of the heart. This research indicates that yogic breathing may actually influence the brain’s cardiorespiratory center to improve functioning.
11. Yoga helps improve sleep
When measuring sleep, researchers look at a person’s ability to both fall asleep and stay asleep. Insomnia can affect one or both of these aspects. Yoga has been shown to improve both how quickly people fall asleep and how deeply they stay asleep. This is partly due to the aftereffects of exercise and the mental calming and stress relief provided by yoga specifically (29Trusted Source, 30Trusted Source). In addition to improving anxiety (or perhaps because of it), numerous studies show yoga nidra to be particularly helpful at improving sleep (31Trusted Source, 32).
12. Yoga may improve self-esteem
Body image and self-esteem are often particularly challenging for adolescents and young adults. The good news is that several recent studies show positive results when using yoga for improving self-esteem and perceived body image in these populations. There have also been promising evidence that yoga could help with the accompanying symptoms of obsession, anxiety, and depression in patients with anorexia nervosa.
13. Yoga may improve bone health
Many postures in yoga are isometric contractions, meaning the length of the muscles holding the pose doesn’t change, though they are fully engaged. For example, in Plank Pose, which is an upper pushup position, the arms, trunk, and legs are all engaged, without shortening or lengthening as they would if you were moving through a pushup. In Warrior II, you hold a position with the lead leg bent at both the hip and knee. Isometric exercises — especially when performed with the joints in flexion — have been found to increase bone density. Yoga asana may also reverse the bone loss associated with osteopenia and osteoporosis. One study showed that just 12 minutes of yoga per day can significantly improve bone health. That said, it’s important to note that the findings related to yoga’s impact on bone density have been mixed, and therefore inconclusive, so far.
14. Yoga can promote better posture and body awareness
As a modern society reliant on technology, we seem to be spending more and more time sitting or hunched over devices. But one recent review of 34 research studies found an emerging pattern: Yoga improved brain functioning in the centers responsible for interoception (recognizing the sensations within your body) and posture. Additionally, yoga’s focus on mobility and flexibility can contribute to better alignment by releasing muscles that are often tight, such as the hamstrings, and improving the mobility of the spine. Doing yoga poses during breaks in your workouts can also promote better posture.
15. Yoga can improve brain function
Yoga truly is a mind-body exercise, studies suggest. The review mentioned above found that practicing yoga activated areas of the brain responsible for motivation, executive functioning, attention, and neuroplasticity.
16. Yoga can help with burnout
It seems like burnout — excessive exhaustion that effects one’s health — is at an all-time high. A recent study looking at burnout among hospice workers during the COVID-19 pandemic concluded that yoga-based meditation interventions helped significantly reduce the effects of burnout by improving interoceptive awareness. This is the ability to notice internal signals and respond appropriately — meaning yoga may help people become more in tune with, and even more likely to listen to, their body’s signals.
While the research is still young (especially in comparison with how long people have been practicing yoga), the results are promising and confirm what yoga practitioners have been touting for thousands of years: Yoga is beneficial for our overall health. Numerous practices fall into the category of yoga, and many do not involve physical activity, instead focusing on meditation techniques. Even karmic or philanthropic action can qualify as yoga!
By Tom Cook
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